Originally Posted by toly
If you use continental grip and keep the wrist in neutral position during impact, pronation cannot produce brushing motion at all. But, wrist ulnar deviation can create topspin, sidespin est.
aaaah no, that will hurt your wrist, trust me.
pronation will produce a nice brushing motion, you are clueless. If you don't play the sport, please don't just bring physics in because you are overthinking it...