Thoughts on Mike Mentzer training philosophies?

Excessive muscle damage, potentially counterproductive?

Thoughts on unilateral work for meat and potatoes?

Balance getting bigger without getting a tummy?

How do you assess if someone is beginner or intermediate?

Foam rollers?

Bad to load muscles at their extreme?

Metabolic stress vs mechanical tension?

If research indicates 10-20 sets per body part/week is optimal, why do many pro bodybuilders do 30-50?

Is there a “rule” for scapula movement when training?

Underhand vs overhand grip for BB rows? What is the difference for lat recruitment?