Does this mean you're never doing the both-sides versions of these, eg two legged leg press? I'm not a very good doctor, but that seems like it should be important as well, for coordination or something.
Huh. That's an interesting approach you've got going.
Have you heard of the theory, as pertains to injury recovery, that when you train your right arm, your left arm gets stronger too, even though it isn't doing work?
Yes, balanced workouts, too.
This hypothesis is a corollary to the injury recovery. Why wait to break something to make the other side get stronger? Give it recovery time while working the opposite side, making it stronger at the same time. Then switch. Wait a couple days and repeat, getting the benefit of 2 real and 2 phantom workouts per week.