Oh--forgot a great practice tip on the release, Instead of just throwing for practice, I learned to stand at the trig facing downrange hold the weight then twist back--put the weight behind me, about centered between my legs, 2 1/2 to 3 feet back. Now I just practice twisting, pulling from the ground up--finishing like stones with head back, chest high, hip blocking and left arm leading/arching.

This has helped me get to pretty much the same place during a throw--I think it builds muscle-memory (?) at gives me a marker of where I am during the throw. When yer old and small like me--ya need all the tricks you can put in your toolbox