Did you sand off all the pre-existing Awlgrip/Griptex or just go for it with simply a solvent wipe?
I Grip-Tex'd my foredeck (23 Sceptre) a few years ago and have never really been happy with it either.
Didn't want to have to sand the whole thing again though.
Also have a huge bow rail and pulpit that's a pain in the a$$ to remove.
So thats been a bit of a deterrent...