[12 piece bucket]

Great stuff, and much appreciated. So in theory (to me anyway), I should move my aiming point closer, further from me to correct any over the top move that I have?

That is an interesting question . . . Potentially YES. But this may not "fix" you. The hands are certianly the comand post of the swing and dictate to the pivot . . . BUT only to a certain extent. Faulty shoulder motion can SCREW UP the most educated set of hands. But give it a shot.

Make your delivery line the Angle of Approach . . . simply a line "out to right field" and place your aiming point on that line and see what results. Could work . . .

But you may have to actually focus on your pivot to correct it and then go back to the hands. Do some searches on roundhousing and axis tilt.