You won't be inclined to turn the steering wheel if you hold it at the bottom, though some guys are reluctant to do that. Personally, I hold the wheel @ about 10:00. I don't like bracing my arm or locking it against anything solid; hard on the wrist if things go wrong. I don't keep a death-grip on the wheel either, something I learned on road courses; if the car goes where it's pointed, all you need to do is keep it pointed.