My cheapo bar-end mirrors came yesterday, so I installed them and took the bike for a spin. I like the way they look, and I love the visibility. Good-bye blind spot directly behind me! I'm going to leave the stock mirrors on for a few days to verify that I want to keep the bar-ends.
A question for those of you who have already done this:
Does the "insert" go all the way into the threaded end of the handle bar? I noticed about a 1/4 inch lip at the end of the bar and only inserted the "sleeve" that far for fear of messing up the inside threads (where the stock bar-end weights threaded in). This leaves a little bit of the insert showing between the end of the handle bar and the mirror support.