. My
>question, really is, when do I turn off the switch? Right
>when I'm launching? If so, won't this affect my reaction
>time.

You use a momentary push button, so you enguage the clutch, and at the same time you are letting go of the pushbunton and grabbing the wheel basically. I dont really use it for anything other than to scare people on the highway or at traffic lights.