Originally Posted by toly
I answered on all your claims in post #18, except the idea “… the prolongation of contact time”.
jumpulse.com tried very hard to sell this idea, but without any success. IMO this is nonsense, absurd etc. Even Oscar Wegner quit taking about that.
Ball is a soft object, on impact it deformed, the harder you hit, the more it deformed, the more it deformed, the more it stay on the string bed, the more it stay on string bed, the more it bounce out.
Oscar is a tennis coach, he is not a scientist.
Just hit the heck out of the ball, arm and body as one unit, you will have such an easy time on the court.