Its definitely important to set the right rake angle, but i wouldn't spend more than $50 for a set when its possible to manufacture you're own. You'll only end up using one of them once youve found the right one.

If you're board is carrying a nose down angle, little touch downs can be a bit catapaulty. If you've got too much angle, it can be hard to get up on the foil, because you're having to bury the tail of the board in the water to get an up angle on the foil. Thats why most people go for 1 or 2 degrees of angle.

The sides of a tuttle box (And deep tuttle) aren't tapered, the front/back edges (and top in a normal tuttle) are. Everything Ive been told so far is that its the box ends that are the strong point, so provided there's good sidewall contact at either end, you'll be fine.

But it does leave me wondering, these spacers in the picture don't actually look like they have enough angle to suit a normal deep tuttle head to deep tuttle box(deep tuttle being the normal choice for the join) where there's already a much bigger angled gap. Unless you've got a foil with a square head (like Starboard) It'll be pointless buying them.

It would be more effective to find a way to adjust the angle of the fuselage on the mast rather than mast in the box. Lower loads and probably quite easy on a mast with a socket style attachment like Starboard.
Or use a track mount which takes shims no problem.

With my Horue Tiny and Moses Carbon-mast, I have more than 5mm between top of the Tuttle-head and top of the box. I made a matching spacer from GRP to avoid any movement. At the same time I made some wedges to adjust the rake. For me that was a bis game-changer. My board was a tad nose-down and every gust ended up in a touch-down. Now it is much easier to ride, because I reduced the pitch-movement.

BEACHSTART said..

hi Beachstart, I'm interested to know what board and foil combo you are using that requires this

Is there a foiling section

I ordered these, nicely made 3D printed spacers, no further sanding or anything. Fine for 20$. I used to use homemade spacers, but liked more options for trim & easier to change small increments.

If your board has a foilbox (so flat top section instead of slanted for deeptuttle) and your foil aswell these shims should work without problem.

If either of your boxes have different angles you might need to stack them, haven't tried. In the end its not really a problem since you only really have to shim the frontbolt, and you can use these for that aswell. Most pro's use the goyard shim kit, which only shims the front bolt.

Maybe nice to know, you can stack the shims up to roughly 2cm height with 0degree difference, or higher with increasing or decreasing rake angle.