By diligently checking my helmet mounted mirror, I've found that I can predict and avoid or prevent a right hook well in advance of it actually happening. From my observation the right hookers are accelerating(to get around you quicker) and moving left earlier(to lengthen their turn radius) as opposed to a passing motorist who maintains his speed or slows and moves left later. When I see this harbinger of doom I move left myself and also accelerate and they usually back down, *sometimes* signal, and cut right behind me. If they stay committed to right hooking me, I now have a lot more room on my right to take evasive action (brake, turn right with them).

Interestingly, the right hookers I encounter rarely use a turn signal. The other side of the coin is that the cars that signal early just about never right hook.

<EDIT> Oh, and on the rare occasion they are actually a right hooker *with* an early turn signal, I do the exact same thing (move left, accelerate) and also extend my left arm in a slowing signal, palm facing back. Usually does the trick, but I'm ready if it doesn't. When they do tuck in behind me, I continue to accelerate and move a little further left so they can still make their right turn a little quicker, as a quid pro quo.