HIT is based on science and has been shown to be the most effective training protocol... all the top naturals use it; and it works for genetically typical trainees... which amply demonstrates it's efficacy.
which science? which top naturals use it?
The performance increases in modern powerlifting are due to advances (or perhaps a new kamikaze mindset regarding dosages) in steroid use (insulin, GH and nasal androstenedione) not increased workload during training... I thought everyone was aware of this?
i could argue that improvements in bodybuilding physiques by pro users of HIT i.e. mentzer, yates (although i agree with candy, he wasn't as low volume as you make out) were due to advances in steroid use.
you clearly respect dr dardens work, however why is there a vast number of the followers of his HIT ( on his own board ) all trying various other HIT varients like rouge HIT, SUPER SLOW, that new take on 21s by johnson (forget the name) POF, etc.
To me the main selling point of HIT is progressive resistance, and that muscle increases with strength, so why then don't you all use powerlifting workouts as they get you stronger/faster that any other workout???
I too have tried many different workouts, and also seriously burned out using volume, with 2-3 hour workouts 6 days a week. However i have also sustained injuries by using HIT, but when greater volume was added, it has always brought more muscle mass.
I agree with you comments that there must be one universal principle to building mass, band that science will hold the answer, but i do not believe HIT to be it.