Routine hasn't changed one bit since his blood and guts days. Doz doesn't seem to believe in permanent education 
Yates is just another hit con man. He used various methods to build his body. He did NOT use HIT strictly to build it. People who watch his blood and guts (snigger) video don't realise that is not the way he trained from day 1. Nor, I suspect, was that the way he trained most of the time in his Olympia days. People believe it because Yates says so? He just trying to stay relevant to make some cash when his bodybuilding hey day is long over with. What else has he got? Just marketing on his so called legacy to keep in the limelight and not fade into obscurity like the vast of popular bodybuilders have done.