I've found a few things really help me for my individual physicality and psychology and it's heavily based on Westside BB concepts.
I find it very important to include the ME effort, DE effort, and RE effort.
It really helps me to actually strain and keep powering through on lifts with the ME day there. Also, it keeps me interested. I find this day very exciting and also the ability to make a new PR every work is nice. It won't necessarily be a new 1RM record or even true max effort work but I will be straining with heavy work.
Yes, I use the box and the wide stance. I find this gives me a ton of power in the hole with my free squat and puts my sticking point at a place where I have a better chance of grinding it out. To make sure I don't lose my rebound in the hole, I make sure to include plyos
With bench and squat, it really helps teach me to use some momentum through sticking points. This is important for me because my body is more geared like a corvette than a silverado. Granted, I do learn something of straining from ME work.
I've found body comp to be important. Even if the muscle built isn't the fastest hardest contracting muscle, it still gets stretched and gives me something to rebound off of in a seemingly more passive way. Fat doesn't do that.
I've also found it very important to conjugate movements. When I stick with the same movements day and day out, one of two things happen. I have to go so easy on the movements to avoid overuse injury that progress nearly halts, or I just start getting hurt.
By conjugating, I can keep the effort very high without driving myself into the ground.
I also find it important to work all qualities at the same time. Granted, there are times where I emphasize one over the others. But the others will at least be on maintenance.