i'm not a gripmaster fan. So for me i just use thicker gauge strings and set the action ridiculously high and then practice my runs, scales, appergios (although i've been neglecting apergios lately ). There's also this thing famous among the bassists called "buddha rope". Bill Dickens is the name of the guy who came up with it. Basically he slides a rope about half an inch thick between the fretboard and the strings to raise the action really really high. I think he usually puts it at the 12th fret. You won't get any sound out of your guitar, but judging by dickens speed (and he's really darn fast), it should work for building up speed and strength. Whether or not it's musical, that you have to judge for yourself.

According to dickens, it also works with toilet paper rolled up into a thick cylinder

This post has been edited by Bassix: Jun 25 2007, 09:44 PM