For me, it was removing the grip puppies. I'm probably the only person on here that doesn't like them. For me they make the bike feel twice as big as it is - can't explain it.
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+1 .... I used them on my 2004 FJR, and then again on my 2008....but after riding the bike for about 6 months with the puppies, I took them off to give it a fresh try...and found that unlike my '04 model, the grips were practically buzz free. So, no more puppies for me. I prefer the smaller diameter grips, seems to held the bike handle better in tight turns.