Originally Posted by sureshs
Across, up, and extension happen together as the arc is 3D. You cannot artificially separate them.
yes they can be separated. if your torso is rotating and your arm is acting independently or disengaged from the rotation (arming it etc)then you can go straight through with no across. or if let/make your hand move away at an increasing distance from the side of your body while your torso/shoulders are rotating then you can nullify/short circuit the across.
you can see the pros do the latter a lot. i do this when i want pure top w/ no side action.