Originally Posted by MNTC

My problems are alleviated by switching hand positions fairly regularly, regardless of fit or handlebar style. Drop bars simply offer the most hand positions of any bar. I am perfectly comfortable on bullhorn and trekking style bars as well. I do not experience any bike fit issues.

Edit: I should also add that on any bike with any style of bars, if I restrain myself to any one hand position for an extended period, these problems arise again. It's a pretty clear cause-and-effect relationship.