Shape, sensation & the decision to add another board
Bonneville, Scoop Tail& Springfield.
A detailed comparison of two 9′9″ logs that feel closely related in the water—and what that means for the place of a Joel Tudor Springfield in the quiver.
Start with the boards actually ridden.
The rider has been surfing a Thomas Scoop Tail and a Christenson Bonneville, both at 9′9″, and reports approximately 75% similar sensations. Recent sessions have made the Bonneville a definite keeper.
Ridden as the direct comparison for this assessment.
Confirmed length; kept after recent sessions.
A personal estimate of sensation, not a measured design score.
The rider also observes more curvature in the KC noserider pintail. That observation takes precedence over using a generic listing to predict the rocker of that particular board.
Thomas Scoop Tail versus Bonneville.
This comparison concerns the standard Thomas Scoop Tail Noserider and the original square-tail Bonneville. Descriptions of the Christenson Mitch OG moon-tail model or Bandito should not be transferred automatically to the Bonneville ridden here.
| Element | Thomas Scoop Tail | Christenson Bonneville |
|---|---|---|
| Purpose | A traditional noserider with explicit emphasis on stability, controlled speed and longer tip time. | A traditional log combining strong noseriding support with quick turning and pivoting. |
| Outline | Fuller nose and a square tail; front-area stability is a prominent design priority. | Narrower nose and wide point behind center, emphasizing control from the rear. |
| Rails | Thomas’s guide specifies full 50/50 rails. | Christenson specifies soft 50/50 rails through the tail. |
| Nose concave | Blended concave. A detailed inspection of a 2021 example describes a relatively narrow, moderate-depth concave. | A shallow concave extending almost to the midpoint. |
| Bottom farther aft | Rolled bottom. Thomas emphasizes rear roll; the inspected example also retained some flatter area near the center stringer. | Inspected examples describe a transition through flatter areas to a rounded rear bottom. |
| Rocker | Deliberate tail flip. An inspected example had restrained deck-side nose curvature with more curvature underneath. | Low entry and low overall rocker, with a distinct kicked tail in the inspected models. |
| Tail deck | A scooped depression is a defining feature, used together with the rear bottom shape and tail flip. | The principal shaper description emphasizes the reverse rocker and extra tail kick; an equivalent scoop is not established for the rider’s board. |
Design sources: Thomas model guide · Christenson’s description, reproduced by REAL. Physical inspections: YR’s Scoop Tail · Bonneville bottom transition · BRINE’s Bonneville assessment.
“Full” and “soft” are not opposite rail types. They describe different aspects of the rail. Both boards belong to the same broad 50/50 family, while volume, apex, tuck and foil can still vary. The available descriptions do not justify declaring one board’s rails fuller than the other’s actual rails.
The details that change the assessment.
Tail lift is shared.
Both designs deliberately lift the rear. Terms such as “tail flip” and “extra tail kick” do not provide a numerical comparison, nor identify exactly where the rise begins. Neither phrase establishes which of the two 9′9″ boards has more curvature.
The Thomas’s deck and bottom curves also need to be distinguished. A relatively flat-looking deck is insufficient evidence of a flat bottom entry.
The scoop is on the deck.
Thomas explicitly locates the depression in the tail deck. It is separate from the nose concave underneath. Thomas pairs it with rear roll and flip to promote stability and controlled pace.
That is an explanation of the combined design. It does not isolate the scoop’s contribution, prove a particular suction force, or establish how much the finished tail flexes.
Thomas’s tail-design explanation · YR’s deck-versus-bottom inspection.
The Thomas can turn readily while remaining noseriding-focused. YR describes responsive, low-effort pivots and useful trimming on its inspected example. That makes “slow turning” too broad a prediction. Thomas’s own description of a slower pace is a model-positioning statement; it is not a measured comparison with the Bonneville.
YR’s detailed Scoop Tail inspection · Thomas’s model description.
The Bonneville’s narrow nose does not reduce it to a trimming board. Its original design deliberately combines noseriding and tail control. Mitch Abshere, who developed the design with Christenson, describes the Bonneville’s reverse rocker as assisting nose control in his discussion of his boards.
Mitch Abshere interview, Beached Days.
What should feel similar on the wave?
The shape evidence offers a plausible explanation for the rider’s reported overlap. It cannot assign a similarity percentage or predict which board will feel better in every session.
| Part of the ride | Revised interpretation | Confidence |
|---|---|---|
| Trim & line adjustments | Shared soft rails and rounded bottom elements can contribute to a familiar, smooth traditional feel. | Plausible design inference; actual similarity reported by the rider. |
| Tail pivots | Both have design features supporting redirection from the tail. The Bonneville’s rearward wide point is distinctive, but the Thomas can also pivot readily. | Supported at model level; comparative effort remains setup-dependent. |
| Walking forward | Both combine concave and rear lift in support of noseriding. Different balance points can coexist with similar overall sensations. | Shared purpose established; exact walking stability unmeasured. |
| Holding the nose | Thomas’s fuller nose suggests more forward margin. Bonneville also has substantial support designed into its rocker and concave. | Expected tendency, not a proven ranking of nose time or ease. |
| Speed & momentum | There is no reliable basis for a universal “Bonneville faster” or “Thomas slower” claim between the two actual boards. | Requires comparable waves, rider position, weight and fin setups. |
| Paddling & carrying | Equal length leaves width, foil, displacement, finished weight and weight distribution unresolved. | Insufficient board-specific information. |
A useful reading of “75% similar”: most of the riding experience already feels familiar, while the differences may become clearer during particular transitions—entering a pivot, stepping through the middle, settling onto the nose, or coming back to regain speed. The percentage remains the rider’s impression rather than an engineering result.
Thomas’s own profile of team rider Tom Morat describes his 9′8″ Scoop Tail as emphasizing easy noseriding through its concave, soft upturned rails and generous exit rocker. This is relevant firsthand riding context, although it is a different size and is published by the brand.
Where the Springfield fits.
The reference model is the Joel Tudor Springfield. Barrett Miller describes a gradual stepdeck, subtle concave, fuller-nose emphasis, tail vee, and forward 50/50 rails transitioning to upturned 60/40 rails aft. It is intended as an all-round longboard.
Barrett Miller’s Springfield description.
A firsthand description of a delivered 9′3″ Springfield reports a fairly flat nose rocker, some curvature near the tail end, a rolled middle and definite tail vee. This establishes useful characteristics for that example, rather than a measured specification for every Springfield.
| Existing reference | Possible overlap | Unresolved distinction |
|---|---|---|
| Bonneville | Low-entry character, tail lift, traditional trim, turns and noserides. | Springfield’s tail vee and rear rails may change its turning response. Actual rocker differences remain unmeasured. |
| KC NR Pintail | Combining turns and noseriding within one ride. | The rider reports more curvature in the pintail. A generic low-to-moderate listing cannot override that observation. |
| Tanner Marshall Pig | Traditional trim and turning; some examples are described as low-rockered. | Exact rear curve and the balance of noseriding support are not established for the rider’s pig. |
| Thomas Scoop Tail | Traditional soft-rail surfing and substantial noseriding capability. | Springfield’s documented tail vee is a different rear-bottom arrangement from Thomas’s rolled, scooped-tail design. |
Additional comparison evidence: KC Round Pin Noserider example · Marshall Pig example. These describe individual boards, not confirmed specifications of the rider’s boards.
Stringer rocker and rail rocker can differ. Vee changes the curvature available at the rail, so a board with a relaxed centerline can still respond readily when tipped onto its rear rail. A side view alone does not describe the entire turning geometry.
A stepdeck is deck and foil geometry. Its presence does not establish extra bottom rocker or a known amount of flex.
Bruce Jones: flat-to-vee and rail rocker.
Todd Pinder explicitly uses Springfield rocker as a reference for his High Too. Because the High Too also has its own bottom, outline and stated extra kick, it should not be treated as an exact specification for a Springfield.
A different feel has to earn its place.
The Springfield may deliver an appealing combination of abilities, but the current evidence does not identify a clear missing role that requires adding it.
The Bonneville is staying because recent sessions have made its value clear. The pintail and pigs supply further traditional turning and trimming references. The Thomas comparison reinforces the point that design differences can produce substantial overlap in actual sensation.
The rider’s earlier priority was an easier daily log. A Springfield’s rocker description cannot establish that it will be easier to carry, paddle or redirect. Its actual dimensions, finished weight, fin and performance in familiar waves would have to demonstrate the benefit.
- Keep riding the Bonneville. Recent enjoyment is direct evidence for keeping it; the research supplies an explanation rather than a reason to reverse that decision.
- Demo the specific Springfield if the opportunity appears. Compare it in sessions where the Bonneville or pintail would normally be chosen.
- Look for a useful difference. Easier handling, a preferred turning response or a noticeably more enjoyable ride is a stronger reason to buy than a different list of shape features.
- Assess the purchase after the ride. If the Springfield feels mostly familiar and no easier, it adds another alternative within an already covered role.
Keep the Bonneville. Demo a Springfield before deciding whether it adds enough.
What the research can—and cannot—settle.
Same length does not mean the same shape. Thomas publishes a 9′9″ Scoop Tail example at 23½″ × 3⅛″. That verifies a real example in the requested length; it does not supply the dimensions of the board ridden here.
Thomas 9′9″ Scoop Tail #10398.
BRINE’s comparison of individual Bonnevilles is particularly useful: two boards only an inch apart in length, with the same listed width and thickness, had noticeably different rail volume and weight. This illustrates why a model name and three dimensions cannot fully predict the ride.
BRINE’s comparison of individual Bonnevilles.
| Evidence type | What it contributes | Limit |
|---|---|---|
| Rider’s recent sessions | The strongest evidence for how these two boards feel to this rider. | The 75% estimate does not isolate individual design features. |
| Shaper / brand descriptions | Design intent and broad geometry. | Marketing language is not a controlled performance test. |
| Physical shop inspections | Details of an actual board’s contour and foil. | Examples differ in length, year and possible custom requests. |
| Assessment in this report | Connects the documented shapes to plausible sensations and quiver roles. | Interpretation remains provisional where actual setups are unknown. |
The most useful missing details are the two ridden boards’ widths and thicknesses, finished weights, rail and tail foils, fins and fin positions. Matched side profiles and bottom-contour observations would also improve the rocker comparison. No numerical rocker match, universal speed ranking, or guaranteed noseriding advantage is established here.
Sources & reading notes.
Research reviewed across 25–26 October 2026. Sources concern different examples and publication periods. Repeated retailer copies of one shaper statement were treated as one underlying account.
- Thomas · Scoop Tail modelManufacturer description of the model’s intended feel and bottom design.
- Thomas · Longboard model guideOutline, 50/50 rails and the model’s positioning within Thomas’s range.
- Thomas · Longboard tails explainedDirect confirmation that the scoop is in the tail deck.
- Thomas · 9′9″ Scoop Tail #10398A specific stock-board example, not the rider’s confirmed dimensions.
- Thomas · Tom Morat’s boardsBrand-published rider context for a 9′8″ Scoop Tail.
- YR · Detailed Scoop Tail inspection2021 inspection of a 9′6″ example, including deck/bottom curvature and pivot response. Japanese original.
- REAL · Christenson’s Bonneville descriptionOriginal shaper account of the narrow nose, rearward wide point, concave, rails and rocker.
- BRINE · Bonneville 9′5″ & 9′6″2018 physical comparisons, overall rocker, rail volume, weight differences and fin discussion. Japanese.
- UsedSurf · Bonneville inspectionAn individual example documenting its concave, flatter transition and rounded bottom. Japanese.
- Beached Days · Mitch Abshere interviewCollaborator’s comments distinguishing his Bonneville from the updated Mitch model.
- Barrett Miller · SpringfieldShaper description covering stepdeck, concave, tail vee and rails.
- YR · Tudor Springfield inspection2020 description of a delivered 9′3″ example. Japanese original.
- Bruce Jones · Flat to veeTechnical explanation of vee and curvature at the rail.
- Todd Pinder · High TooExplicit Springfield-rocker reference in a different model; not an exact Springfield specification.
- UsedSurf · KC Round Pin NoseriderModel-family reference only; does not override the rider’s observation of the actual pintail.
- Sea Kong · Marshall Pig exampleLow-rocker comparison context; exact correspondence to the rider’s pig remains unknown.
