[Miles Roberts]

Regarding active shoulders and the armpit position and stuff... Something one of the L1 trainers had me do was to hold a 10 lb plate in each hand - overhead like a waiter might carry a tray. Then do some overhead squats holding those overhead. Its harder than it sounds, and it really helped me. He said a personal goal of his is to do 25 of those unbroken with a 25lb plate in each hand.