Originally Posted by xFullCourtTenniSx
So I should just stick to what I've been doing and just get racket head acceleration using shoulder rotation alone with the hips to keep me balanced? O.o
if what you have been doing is using just shoulder rotation to generate rhs i believe there's quite a bit more you can do to improve but rotating the hip more to increase rhs is not one of them. try counter rotating the hip. this is usually done in the air for jumping fh to balance out the upper body rot inertia. it is one of the stopping mechanism by lower body including hip. think fast cars have much larger brakes. or due to the braking power you can drive fast. otherwise it's injury and your body knows that and wont allow it to happen even if your brain tells swing faster.