Is the rear indexed or friction?
If the hand that stays on the bars is out wide, like on the hood, or the drop, it needs to be done with a light touch. That far from the steering axis a little bit of movement translates into large steering corrections. The alternative is to hold the bars near the stem with that hand. I prefer the former technique. It's not hard to do with a little practice. It's easier than reaching for (and replacing) a water bottle, and that's pretty easy itself.
Last edited by CraigB; 11-05-11 at 03:47 PM.