|Turn Signals, From the City of Milwaukee|
HOWEVER, there's another reason to raise your hand, and I can't believe I didn't think of it when I was in the situation. You see, the "Alternate Right Turn" signal is the only one a cyclist makes that takes his/her right hand off the handle bar.
Well, as related by Sheldon Brown, here (as well as many other places including bike school), MOST of your braking power comes from your front brake. As I noted, in my blog post about the alternate braking universe of hooking up your brakes backwards, here, the problem with using the right hand to operate the front brake is that right turn signals get a bit squirrely. Well, that isn't the case if you pretend to be driving a car and, simply RAISE YOUR HAND! If you hook your brakes up backwards, and you're right handed, then you can use your strong hand on the strong brake whenever you signal. Even if you're signaling a right turn.
Duh. Now I have to think if I want to change all my bikes over to make them brake backwards. I think, maybe, I do, but I'll try some of that dweeby hand raising first. I wonder if that's why Whareagle signals that way. No, he probably doesn't have his brakes hooked up backwards.