As I understood it, one of the “a-ha” ideas behind your HP Mass program was that different movement chains have different mixes of fiber types, and should therefore be trained with different methods. As I read it, “Pushing” muscles are predominantly type II, so more low-rep explosive movements, done frequently. While Pulling muscles are more type I fibers, so more holds, high-reps, and train them less frequently.
Similarly, Hatfield’s old stuff charted different training frequencies for different bodyparts based on recovery times - arms recovered faster than legs, etc.
Obviously some programs like Built for Bad ignore this idea and still work. Are you thinking differently with rep ranges or methods based on the movement pattern (press, squat, hinge, etc) or is that kind of specificity not as important in your experience?
Are there any movement chains or bodyparts that are particularly “special” in terms of needing different training methods from most others?