One other thing that is ultra-important IMO: You have to consider the impact of fatigue. IMO for the jump trainee fatigue and fatigue management should be looked upon as qualities just as important as your strength, power, reactivity etc.
Fatigue can mask fitness and you have to be aware of that and know how fatigue impacts you and know how to manipulate it.
A lot of times athletes think they need to do this or that when all they really need to do is manage fatigue better.
Your comments on the other thread and your fascination with Smolof are prime examples of this and it's good you're aware of it. You consistently get your vert higher AFTER doing smolof but during the cycle itself your jumps go down.
When you lift heavy weights with any sort of volume you strongly activate both your nervous and muscular systems. You also create a lot of residual fatiuge in the muscles themselves as the activity is prone to create tissue microtrauma. The junctions between your nervous and muscular system become fatigued so a given amount of charge from your nervous system fails to activate the muscular system to the same degree. Where it's most readily apparent is in high speed activities. When your nervous system is fatigued the symptoms will become apparent in faster activities before they become apparent in slower activities. So your lifts may continue going up even though your jumps go down. So, how do you fix this? There's really only one thing you can do and that's cut down (not necessarily remove completely) the volume of heavy lifting and let your nervous system and muscles freshen up. It doesn't take long - a few days to a few weeks at most. But once you remove the fatigue then you can fully
display your fitness (explosiveness). The same thing occurs in athletes that do a lot of conditioning or cardio work. Those activities create a chronic strain on the neuromuscular system that will negatively impact the display of high speed explosiveness.
Tolerance to lifting induced fatigue tends to be variable in my experience. A guy like Raptor is impacted BIG TIME by heavy or high volume squatting. He doesn't jump well with any sorta squat volume. On the other hand a guy like Adarq IIRC has repeatedly hit many of his best jumps right during the middle of a concentrated strength block.
Pure explosive training (plyos, explosive lifts) tend not to be all that fatiguing so you can focus on those and allow your nervous system to freshen up. You can usually simply just cut back on the high fatigue activities but you can go more extreme then that and pull it all out. I believe when you made your gains with the band jumps you pulled out all squats didn't you? You probably wouldn't want to eliminate ALL strength work for long, but one simple way to tell if fatigue is masking your jump related fitness is to temporarily pull out all strength and conditioning work for 7-10 days or so. That's not enough time to lose much in the way of what you gain from those activities but you can then assess your situation and gradually put it back in.
You should also design your cycles with this in mind. Don't expect to hit jump PRs in the middle of a smolof cycle. Smolof comes close to killing most people in my experience - if you can jump at all in the middle of it you're way ahead of the fatigue management curve.