It could be the bike not you. My carbon Ruby is as flighty as they come in a cross wind. I've had it almost blown out from under me more than once. One the other hand, my LHT and I can lumber along with hardly a waiver. I've yet to figure out why. The Ruby doesn't have much to catch the wind while the LHT is loaded down with a front painier, 50mm fenders and Hokey Spokes in the wheels.

And while this doesn't address your leg question, I just seem to ride slower cause I'm working so hard on my balance. bikerHen