Things are going well.
I did the Legs/Pull/Push split hard for 4 weeks and found once I got used to the DOMS and extreme pump, it was tons of fun.
I am actually still using that split but experimenting with concentrated loading.
Last week was 3 Push Days in a row (Monday through Wednesday) and another Push Day on Saturday with Pull and Legs done on the other days and Sunday off.
This week is Pull - Monday through Wednesday, Push - Thursday, Legs - Friday, and Pull - Saturday. Then I will likely return to the regular Legs/Pull/Push split.
I asked CT his thoughts on a concentrated phase using the pump/HT layering approach. He didn’t respond, but I really enjoyed it. Going into the second day slightly tight and sore, as has been mentioned by people smarter than me, helps you engage the muscle the second day because you can feel it easily. By the end of the third day, it feels as if you’ve provided such a massive stimulus for growth that your muscles will have no choice but to respond. After pounding the same muscle for 3 days, there is no question if you’ve done enough or not, lol. I guess you could worry about doing too much, but I judge that I didn’t cross that barrier because there were no detrimental effects and the weights I was using on exercises remained steady.
I won’t be doing a concentrated phase for legs as I think I killed my knee during the first 4 weeks of this split; Deadlifting 4 times per week (but I don’t think that was the issue) and Squatting 2 times per week and using partial ROM as a pump technique (I think that is what led to me knee pain, partial squats, and the top half more so than the bottom half partials).
As you saw in the live spill, it got to the point where bodyweight squats and deadlifts hurt it. I experimented and determined that front box squats can be done pain free. So I think it has something to do with shear stress, as the front box squat allows me to keep me shin almost completely upright as I sit back onto the box which keeps the center of gravity almost directly over the knee (thus no shear stress).
Therefore, front box squats will be my leg building tool for now. I am enjoying it and I have lots of room for improvement since it is a lift I haven’t done before. I miss back squats and deads, but hopefully the front squats will keep me from getting overly weak on those lifts and maintain my leg mass.