I am always looking for an advantage in regards to speed in my racing planes.

I have a way of setting up my racers (with a single aileron servo) so that the ailerons ONLY move up and not down.

My question is? Is it cleaner (faster) having one aileron move up quite a bit, rather than having one move up, and the other moving down?

Or, is the gain so minimal as to not be worth pursueing.