Good write up CS..
One thing that I noticed over the years....load is the single biggest factor to getting stronger and bigger....period.....other variable can make differences but load is the end all.....so if you want to lift more....start using heavier loads.......singles, doubles, and maybe some triples....long rest periods......
I have noticed higher frequency, shorter rest periods, and other such things often improve efficiency in an exercise or general GPP but dont have as much carryover to raw strength as just heavyass, no holding back, struggling for that rep as though you're about to pass out attempt.....granted we all have limits and perhaps it's smart to leave a smidge in the tank to avoid injuries...