What horrible form? Do you mean the military presses? Sure he trained fast but his reps were under control and judging by the size of his giant delts, he knew his shit..BTW Louie knew how to train, just look at how big he is, he is an animal unleashed, do animals go slow or do they attack the weight and scream?? Dont buy into this modern day bullshit about slow tempos and such, if you can do the reps the right way then go at your pace.
Look at Louie! he was the biggest bodybuilder ever in his time! Then tell me he trained the wrong way!!