I think what makes it hard to find out is that you’ve got to figure out what works for you as well as what works for each lift.
So if higher volume is something that quickly burns you out, bench and squat will probably be harder to grow because they tend to thrive on volume, for example.
I also think you’d be hard pushed to find a better set of foundation principles than 531. A lot of the new stuff Jim puts out seems a little overly generalised for me - but that’s hardly surprising because I get the impression that Jim is focusing more on younger athletes who either or both have little to no experience or are focused on athletic performance. I like the leader/anchor approach, though. I think that is the last piece of the puzzle for me.
I don’t care about my jumps or throws or my dash time. I’m more concerned about my joints working as they should and having enough work capacity to get through my training and do whatever physical tasks I might encounter without sucking wind while getting stronger and having a decent physique. The latter is diet and the first point is basically warming up and stretching properly, so training only needs to take care of strength, work capacity and some size, and strength and size at this stage are pretty much inextricably linked for me so the only addition I need is the work capacity. As far as I can tell doing something once a week that isn’t weighted and leaves me gasping will do the job.
I realise I’m partly guilty of ignoring some of the principles, but I’m comfortable with that. I’m not going to do something just because Jim says I should - especially if it would detract from what I want to achieve.