I think the point Tank is making, and I might agree is, the HIT Dr Ken style 20 rep squats, are most likely only needed 1x per week. (and that is all I wanted to do them.) I did not look forward to these especially as they got heavier week after week. They got quite brutal. As Ken would say, you have to keep screwing your head down tighter to get thru these W/O's.
Now, I know guys might add in a 2nd light W/O for say recovery, (#135 2x10) and then do some pulling ie: deadlifts. But to do 20 rep squats in the HIT fashion 2x per, is probably not needed. I was usually crippled for a few days not being able to go up stairs real easy or bend over to get a pencil at work. 4 or so days later, I could get in my deads.
And yes, to grow, eating enough or a calorie surplus.
As far as OP's BP (?), what is you "exact routine" for say the cycle and how do/did you approach your heavy and or work sets?