O&G, yeah Borge now only recommends myo reps for higher rep ranges and only for specific situations. Here are a few quotes from his blog:
"I use high reps Myo-reps to reactivate hypertrophy during certain training phases/periods, in advanced lifters:
http://articles.elitefts.com/training-articles/reignite-progress-with-new-science/"
"Anyway, I have told you over and over, that IF and WHEN I use Myo-reps in a set-up it has one of two purposes:
1. Reactivate satellite cell response in advanced lifters, optimally 24hrs prior to a heavier workout
2. As added volume in the lower loading ranges (50-60% of 1RM), using isolation exercises such as leg extensions, where the heavier loading ranges are comprised of e.g. squats at 80% of 1RM and unilateral work (split squats or lunges) at 70% of 1RM."
"So if you use the same weight ie 5-10 rep weight, and you do the same volume in total ie 40 reps, will it matter if you do straight sets or rest pause?
Yes, it matters. I don’t use rest-pause on heavier loads. Read Menno Henselmans’ and Brad Schoenfeld’s review paper on the topic. Short answer: 2-3mins between sets is optimal."
The numbers from my last post are a quote from Borge's old myo rep articles in Norwegian (circa 2008-2009?) and refer to the reps after the activation set. Later, he pushed more for the auto-regulation aspect