Originally Posted by
JanMM
Absolutely correct that a funky cut would not affect a seat post but it would bother many people no end. More of a real (mostly aesthetic) issue with a handlebar end than the bottom of a seat post.
Yeah, no question a straight cut is more satisfying even if nobody but the owner knows it's there. I use a steerer cutting guide to shorten seat posts and would certainly use one to shorten a handlebar but neither application absolutely requires it.