a couple'a more things....
I used a t-handled Allen wrench to loosen the old grips, and got them off without wrecking them. Remember to keep the handlebar pointed downward while you work on that side to avoid having the pressure grommet nut fall down into the middle of the bars. Should this happen, the best idea I heard is to blow it out with compressed air from the other end. To get the pressure grommet out ( on the throttle side, you really don't have to take it out on the clutch side unless the nut drops out when you try to reinstall the weight mounting screw), I made a tool out of a length of coat hanger that had a 1/4" 90-degree angle on one end and a loop on the other. This would let me ease it through the diamond-shaped hole in the grommet, then pull it gently on out.