Five-Pound Mug Suck Repetitions

Some endurance mug sucks. I usually did these for 5lbx5x5. There is a real question of what the value is of a set of 5 vs an extended duration mug suck, given that the primary driver seems to be the body and not the mouth (which is just isometrically maintaining suction). I maintain that 5 reps are still more valuable than a max duration suck, because a rep trains the body to move while the mouth maintains suction, which better sets you up for functional mug sucks later.