i am not sure, some people say they throw harder from the mound some say they throw less… i am quite sure i need more quickness in my legs to
achieve a consistent 88-90 mph, on the mound once you reach the load position if you dont explode to release point within at least .3 seconds then you wont throw 90+… the forces just wont happen
and the head thing im not worried about for defense, i always see the ball go back into the catchers mitt, my head just shakes from the violence of my delivery… will be looking to possibiliy keep a more relaxed but powerful finish… ive learned now the whole key to this velocity thing is being strong enough + quick enough… and to be quick enough you have to be very relaxed and poised…
fix 2 things, head shake if possible, and keep my arm more loose in the finish might take pressure off shoulders/neck