Just about every Muscle & Fitness reader knows that tobuild cannonball delts, you need to start with heavy presses followed by an isolation exercise for each of the three deltoid heads. Astute readers even cycle the order in which they train each deltoid head from one workout to the next, knowing that the move that comes first will be trained harder as energy levels and focus are higher earlier in the workout.This workout takes that training philosophy one step further for hardcore gains. After a pair ofcompound moves, you’’ll do two shoulder exercises back-to-back for the targeted deltoid head (Shoulder Workout No. 1focuses on the front head,Workout No. 2the middle andWorkout No.