Originally Posted by SystemicAnomaly
Note that most servers do not actually hit downward on the ball for the serve. Even if the racket face is slightly closed at contact, the racket (& hand) are usually still moving upward during the contact phase. Also, most of the upward swing is still at a steep upward angle. When we throw balls (or rackets) upward, we release it slightly early. If we release the ball (or racket) late, it will go down even tho' most of the throwing action was upward.
saying servers don't actually hit downward when obviously the ball travels downward is a contradiction and not true. the racquet head is controlled and accelerated in such a way at contact the RHS is highest at contact and it's facing the target with desired spin. all these info are directly registered and comes from the servers mind.
you might be able to achieve pretty good serve in a roundabout way but I would contend that's not the optimal way. it could be argued it could be helpful and I agree to that however.