Sea Bottom

Volume drives the call in both bands. For the shortboard band (5'8"–6'0", 32–41 liters), pick roughly the same volume you ride in your daily shortboard — the deeper bottom adds drive without adding bulk, so you don't need to size up for paddle. For the mid-length band (6'8"–7'6", 50–63 liters), size up by 6 to 10 liters over your shortboard volume to load the longer rail and get the paddle-and-glide feel that makes the mid-length band worth picking. If you're between two sizes, size up in volume — not length — for softer waves, and size down in volume for waves with more push. Talk it through with me on a custom order if you want a second opinion.

Every Sea Bottom ships with a five-box fin layout — three center rear plus two sides — which means the same physical board runs as a thruster, a quad, or a twin-plus-trailer depending on what you plug in. Thruster is the punchier setup for clean waves with shape; quad loosens the board down the line and tightens up the drive through softer sections; twin-plus-trailer goes looser still and is the right call for waist-high beach-break days where you want the board to slide. Default box system is FCS II or Futures, your pick at order. The full template recommendations across Futures, FCS II, True Ames, and NVS publish after the rake-vs-pivot fin guide deep-dive lands — start a custom order and I'll walk through which template fits your weight, stance, and the waves you're riding most.

Soft-to-mid-range surf in two registers. The shortboard band runs as a deeper-belly performance hybrid for everyday SoCal — Salt Creek on a soft summer push, T-Street between sets, Cardiff Reef when the swell drops to chest-high. The mid-length band runs as a modern mid-length for groovy point sessions and slower faces — San Onofre when the points go fat, the long shoulder of a Saladita point on a mainland Mexico trip, a soft Mentawais reef-pass session where you want one board for the dawn-patrol session and the afternoon glass. Both bands are at their best knee-to-shoulder (shortboard band) or waist-to-overhead with line (mid-length band). When the surf gets hollow and fast — Lowers on a real swell, an overhead Mentawais reef day with push — a flatter, more-rockered shape handles the same wave with less hesitation in the pocket; that's not what the Sea Bottom is built for.

Confident intermediate through advanced surfers building a soft-wave quiver. The shortboard band rewards you for being on the front foot — if you're still figuring out where to stand on a performance shape, a wider, flatter shortboard will give you more margin while you sort that out, and you can come back to the Sea Bottom when the front-foot drive starts paying off. The mid-length band is friendlier to a wider range — if you've ridden any mid-length before, the Sea Bottom in its 6'10"–7'2" sizes will feel familiar in the lineup. The shape is at its best lived as either the small-wave shortboard or the modern mid-length. It's not a one-board-quiver buyer's pick; it's a quiver-builder's pick.

Lead time depends on the finish tier and the current queue. Clear-resin sanded is the fastest at four to eight weeks (4–6 for the shortboard band, 6–8 for the mid-length band). Tinted-both-sides sanded runs eight to ten weeks. Top-tier resin tint plus gloss-and- polish runs six to eight weeks. Every Sea Bottom is designed in Shape3D, CNC-cut from a PU blank, and finished by Jack Sykes here in San Clemente. We confirm the timeline at order based on the live queue. Twenty-five percent deposit at order; balance due on completion.

They're cousins, not twins. The Holy Toledo is the closest public five-fin convertible hybrid to the Sea Bottom's shortboard band — both run a deep concave through the bottom and both convert between thruster, quad, and twin-plus-trailer on the same board. Two real differences: the Sea Bottom carries that DNA up into a 6'8"–7'6" modern mid-length range, which the Holy Toledo doesn't (Sharpeye runs a separate mid-length lineage). And the Sea Bottom is built to your specs — width, thickness, volume, tail shape, glass schedule, finish, and fin system all dial at order — whereas a stock-line Holy Toledo ships closer to a single recipe. If you're shopping the Sea Bottom shortboard band against a Holy Toledo, the comparison is fair; if you're shopping the mid-length band, the closer comparison is the Christenson Ultra Tracker or a Ryan Lovelace V.Bowls.

Two defaults, one per band. The shortboard band ships standard on a four-ounce-S-cloth-plus-four-ounce-warp deck and a four-ounce-S bottom — the lighter spec keeps the rail responsive under foot. The mid-length band ships heavier on the deck — six-ounce-S plus four-ounce warp — because the longer rail needs more support under the front foot when you load it; bottom is four-S-plus-four-warp on the mid-length to keep the bottom stiff. Both bands run polyester resin on a PU blank as the standard build. Sanded finish is standard on every tier; gloss-and-polish is a $200 upcharge on the mid-length band and gives you the show-quality finish if you want the board to look as deliberate as it rides. Deck patches and volan tail patches are available as add-ons; I'll recommend a patch on the deck if your weight or surfing style asks for it.

Because each section of the bottom does a different job. The single concave through the front section gives the lead foot a clean, loaded surface and lifts the board onto plane the moment you stand up — that's the part of the board that decides whether you can get speed out of a soft takeoff. The belly concave through the center is the shape's headline feature: it sits the board a touch deeper in the water through the planing zone, which generates drive when the wave itself isn't pushing on its own. The double concave through the tail splits water behind the fins so the board can release cleanly out of a turn. Three contours handing water off to each other lengthwise — that's why the Sea Bottom keeps generating speed through soft sections where a flatter, single-bottom shape would stall.

- Voice rules honored: no "stoke", "shred", "boost", "send it", "ripper", "fire". No "hand-shaped". No comparison to another Lundquist model in any answer (Innuendo, Spectre, etc. are not named). - Geographic anchors: Salt Creek, T-Street, Cardiff Reef, San Onofre (SoCal); Saladita, Mentawais, mainland Mexico (travel). - Builder reference: Holy Toledo (Sharpeye), Ultra Tracker (Christenson), V.Bowls (Ryan Lovelace) — all from the `descriptions.md` §6 competitor table. - Q8 contour grounding: pulls directly from the Vision read of `Contour Diagrams/13. Sea Bottom/3. PNGs/Sea Bottom Contour Diagram.png` — single concave (nose) → belly concave (center) → double concave (tail), 60/40 soft rails with hard-tail release. - Top three for FAQPage JSON-LD: Q1 (sizing), Q2 (fin setup), Q3 (wave range).