Hyper Trophy is what my sons win for their behavior.
Here is my opinion.
Breaking it down to 1-5reps, 6-9, and 10 and up, I believe is not correct. You have two types of muscle fibres, fast twitch and slow twitch. Depending on your body type you have to figure out what works best for you. I do very well on higher reps and I have muscle growth. My PT got me started on doing 1 set of 85reps doing 25 light, 5 heavy, 25 light, 5 heavy, and then 25 light non stop. This hit both types of muscle fibre and works great for me. Now I am doing 1 set of 15 with a weight that I fail twice, or supersetting 10 sets of 5 reps with no failure at all.
I may have these backwards but,
fast twitch for higher weight lower reps
slow twitch for lower weight higher reps
Vary your workouts, do one week heavy and one week light. Don't get stuck doing week after week after week of 3 sets 8-12 reps.
Cycle your eating also, like w8lifter is doing. Keep your body guessing.
Gopro can give better advice than what I am.