Thank you.
I have a moment.
Disclaimer. I have never met or talked with Ken.
Some ‘SuperSlow’ (SS) history, from memory; a person who hired him and his writings and from two family members that operated two SS gyms and in writings.
University of Florida College of Medicine was given millions of dollars by Arthur Jones to study the effects of weight training on osteoporosis in the elderly. Ken Hutchins supervised the study, Arthur was too busy. (One of Arthur Jones’s biggest regrets was that he could not be in two places at once.) Arthur Jones eventually fired him for gross incompetence and lying.
Ken developed the SuperSlow protocol there; slower, less weight, less momentum, i.e., safer. Only he carried it to extremes and branded it. He went on and started his own ‘cult’, designed some interesting machines (I will give him that), stole Arthur’s cam designs and redesigned them to suit his own unfounded beliefs and wrote a ton of absolute bullshit under the guise of science based.
Some, a very very few, probably zero, improved their appearances but only through diet, not SS training.
Nothing wrong with moving slow, but too slow, like too fast is not optimal and may be, in some, most(?) instances, counterproductive.
Many here have articulated speed of movement this better than I. My mantra has been, when in doubt, move slower. Control the weight, do not let the weight control you. And accentuate the negative as it is the most important aspect, result producing part of the exercise movement.