I hate when you do something just to achieve the end result and not realize the real purpose behind anything that you do. My point is not that his form is bad.

I hate when you do something just to achieve the end result and not realize the real purpose behind anything that you do. My point is not that his form is bad. Its to do with any sort of competitive physical exercise. You want to do 40 pullups properly in perfect form ? Sure, you can train for it, optimize every part of the movement, get proper nutrition and do it. But is that the main objective ? If it is, then fine. But if your objective is to strengthen your lats and grip strength then there is no point in doing a single set of 40 reps. Split your set into 15 reps. And do 4 or 5 of them. Pace it properly and with perfect breathing. And concentrate on your lats. Squeeze them hard and expand fully, go slow on the negative. There's too many things if you go into the details.