Does anybody have any experience in cutting starboard on an angle to level out riggers for a hardtop installation. I bought a set of lees riggers. I have the mounting plate for the underside but need to level them out. I've seen similar installations were a material that looks like starboard is cut on an angle to compensate for the angle of the hardtop. I am pretty handy and would like to save a few bucks and do it myself.I have a grady 232 gulfstream.