To be honest I haven't read your log.
I saw Lance's post and wanted to piggyback off of some of the ideas Lance talked about. (Maxing out every day, I have been Deadlifting 3x/week along with squatting). My deadlift cycle went like this (Each row is a workout):
65%x15x1
70%x15x1
75%x12x1
80%x8x1
85%x6x1
I basically lifted MWF. At the end of the cycle you add 10lbs to each workout and start over. Once that starts grinding the recommendation was to test a new sorta max.
Instead I moved to the following cycle
70%x2x5
70%x5, 75%x3, 80%x2
80%x5x2
85%x6x1
Add 10lbs rinse and repeat.
It is a slow cook it approach, longer term thinking like Lance was talking about. My deadlifts have gone through the roof. I think a similar approach would be effective for the squat. BTW squatting and deadlifting 3x/week at my stage is pretty high frequency (Squats were heavy n the beginning but now more of a DE type squat). Today I pulled 250kilos for my 5x2. Pretty much my previous PL'ing max from my 20's only instead of a single I hit 5x2. And it was pretty easy. And I am getting OLD. The hard part is being patient and not pushing the pedal to the metal. It's a mind fuck to stay comfortably within yourself. Knowing if you need a day off it's OK. Or resisting the urge to "Just see what you can lift". I am sure it will slow down eventually (hence the switch I made to a lower volume approach). Every 3 weeks or so I get the urge to change but then I think I am stronger than ever so keep going. Or as Dan John says "It was so effective I stopped doing it!" So I always need to remind myself of this too. It is also hard getting used to the idea that you shouldn't feel smashed after every workout. Cool thing about a cycle like this is that it won't really interfere with your other training.
What's next? I may try deadlifting every day 70x%3x3, 75%4x2, 80%5x1. I know much lower volume than before but frequency will be doubled. I would probably take this to I start grinding and then take 2-3 days "off" and max out.
If training for a sport, I would do a warm up with whatever correctives you need. Do 2 plyo exercises for your goal (hip for speed, squat for jump), hit the squats with the %'s and reps listed, add in some glute hams or single leg deads (not both). Stretch and call it a workout. Play your sport for conditioning, or if you are old like me do a bunch of swings, ropes, etc... 2-3x/week.
Intensities and volumes are manageable enough for you to practice your sport/goal so we don't get distracted from the prize (on the field of play, not the weight room)
Just something to think about
Excellent post Alex, thats great work on the deadlift too man, congrats!
Entropy, whatever you choose I hope for the absolute best for you bud, I hope you dont take any of this as negativity towards you at all, we want to see you keep progressing like a bosshawg like you have in the past. Dont get frustrated, plan smart and then kill it like you have been.