Thank you for that answer.
I've tried something similar to that for six months at one point (lower body and oly lifts mon wed fri, upper body tue thur sat, sunday off), sets of 3, always accelerating, stopping the exercise at the max force set (I don't remember your exact terminology but I think that it was pretty close to that).
It made me gain some upper body strength on my bench, push press, row, power clean, but none on my squats and deadlifts, and I didn't see, in the mirror or on the scale, any hypertrophy gain.
From what you said in your answer, would a good explanation for the lack of progress on my lower body would be the fact that the LB exercises are much more CNS-intensive than the UB ?
The thing is, I followed your "perfect rep" principles during that time, with a rapid turnaround at the time when the main muscle is fully stretched, so what do you think I should do about the eccentric part of my reps ? Should I use tempos such as 30X1 to release more growth hormone ? Was hypertrophy an elusive goal since I workout so much ? Hypertrophy progress coming in spurts, especially for the natural athletes such as me, did I just get unlucky during that time period ? (of course I take great care of my rest, CNS or muscle-wise, and of my nutrition, being it intra workout, peri workout or throughout the day).