you want to use full pronation for any serve to maintain consistent high racquet head speed. the swingpath and the racquet head control around the contact point can be varied for control (amount and direction of spin and through component).
what people often don't realize is that the variation at the contact that results in wide or T serves is smaller than usually perceived. The full variation can be achieved by racquet control within the pronation.
Last edited by boramiNYC : 03-03-2013 at 11:25 PM.