Looking for support on how to fix a slow board, if possible.
The details are in the plan shape and I put the fins at 8.5" from the back, 1/8" toe, 4 deg cant, 1.5" from the edge. Note the rails are downish style and probably a bit too pinched. Bottom contours are a basic single to double to vee.
I’ve ridden a few times with a few different sets of twin fins and it goes okay on mid size waves but always feels slow once you lose momentum on smaller waves. Just feels like it doesn’t want to go. It does paddle and glide in waves really well. I’ve only made 6 boards so far but every other board with more rocker has performaned much better.
My question is, can the lack of speed generation be due to the fin placement? I understand it may just be a bad rocker (or foil, shape, rails, etc.) but I’m wondering whether adjustment of the fin placement can fix the issue. Still deciding if I should try it as moving the boxes to a standard thruster setup, push up the twin (plus trailer) placement to around 9.5 -10" up or even try out a quad setup.
Has anyone made a bit of a runt of a board then turned it around with a new fin setup or placement? Or is a slow board always going to be a slow board…
Also open to constructive critism on the board in general.