Many things here are imho witnesses about the "mistake" of jumping from us box to tuttle. No strong head for large fins in us, strong head but without easy one back strap option in tuttle. Ugly and slow us system with different sizez and shims to put many times, or time spend sanding heads; useles for not wave boards. Differences also in tuttle boxes
Why refusing thinking also at powerbox in Starboard? Never had a problem with PB.
I know. it's an old story and will not change.
Meanwhile I use to change fin for every different sail, and as I got a bunch of 16 PB fins I cannot think switching to a tuttlebox board, and buy again a lot of fins, even if I would like a lot to have one of such beautiful boards like the Starboards.
Nico from Venice.