Coming from 5 years Carver CX experience on 34", 37", 46" and 48" decks, i've just installed the rail adapter on a Longboard Larry Cruiser 56", my board truck holes are vintage ones (longer between holes), i've placed the plates in order to shorten the WB (from 38 to 37"). The fact that bottom plate holes are vintage with TKP on top plate (Paris Street 149) eliminates the risk to rattle the nuts of each plate. Coming from CX trucks, i immediately noted the advantage of the waterborne adapter, with CX front. I found a good balance with the following set up, rear : shock pad, waterborne adapter with Riptide 87,5, Paris TKP street 149. Front : shock pad + 2 Carver risers and CX with Riptide 85a. It pumps a bit better than with CX+C2, but the most advantage i note is that it mimics much better the longboard surf flow with the rear lean. It allows to drive like a real longboard surf, mostly from the rear, even if the game is to cross step and move to the front. I was expecting an instability because of the rear lean, it's not the case. Instability from the rear comes a lot from the turn. So very happy with this custom set up to longboard surf feel and cross step. I've prefered to use nuts in any case to secure the setup. I don't feel too high on the ground, but it's certainly a max for my taste. I've sanded wheelwells myself just on rear, to be safe with 70mm (Surfskatelove 81a), it was necessary. Front don't needs wheelwells because of CX stop point occurs before wheelbite risk. As 52 years old longboard surfer (9") and suplongboard surfer (10"), i really appreciate this improvment. Great communication and fast shipping much appreciate.