Originally Posted by Pop N Wood

What is super important to note is with your hands in the B position any side to side pressure from your hands will not turn the bars. As a guy who switched out his drop bars for a set of LONG bullhorns is it pretty easy to pull side to side, especially when out of the saddle and pulling on the bars. I had to practically relearn how to ride when I went to the bullhorns. I have to be super deliberate with my hands or I can easily take myself down.

So while getting your hands a greater radius from the stem axis should in theory make the bike less sensitive to sloppy hand movement, I think it is the side to side leverage from having them way out front that makes the bike feel "twitchy". When you think about it most people ride on the top corners of their drops, which is near position B on your diagram.