The position of the arm alleviates unnecessary joint pressure to extend shoulder integrity.
The pulley should be set at about the lower chest level.
Elbows are roughly 45 degrees from the body.
Hands are in neutral grip (facing each another).
Begin with 25% of your barbell military press for 4 sets of 10 reps. The video shows Fred Shaka, who normally presses 225 pounds for reps, but trains this exercise at 60 pounds.