tuttle/deep tuttle

[Distinctly Average]

I have absolutely no idea why you would want to pack out the space RSB. I also reckon it is almost impossible to tighten the screws enough with a standard screwdriver to pull the fin too tight into the board. It is not as if you are sending the bugger to the moon is it? Just tighten them until you feel a slight resistence no more, just enough to stop the screws from coming loose.

As for the select fins ZZ the excess is from the way the root is moulded on and you should quickly file that off. You will probably find that like most select fins there is a bulge in the root at the widest part of the fin that may also need filing to fit in the box well. When fitting for the first time I have found rubbing the sides with soap then trying to push the fin in makes it very obvious from the marks the areas that need filing.

[Duncan Adam]

I have made a spacer out of an old nylon breadboard to fill that gap above the fin(3pieces stuck together for the width, measured and cut vaguely and sanded for perfect fit).

These teachers are clever folk!

[Redsurfbus]

I dont use screwdrivers, I use an allen bolt, personally think it makes far more sense, they dont wear out where the tool goes.
Its easy to tighten it to move up, especially those fins made with plastic heads.

The key reason I stated that it was to easily guide the bolt in, saving precious seconds. I know many slalom/speed sailors who end up using duct tape to pad a fin head out to make a flush fit, no need for that with my method, and it also stays in the board and keeps the bolts in the board, saving even more precious seconds.

[Duncan Adam]

I must admit I use allen bolts for the big board and big fins due to the wear factor.