I guess you have to ask yourself: how much of a factor is squatting strength in your jump? I guess DL is more reliant on quadriceps strength, but hams, glutes and calves are all important in producing some force as well as your stabilising muscles for the transfer of speed --> plant. Maybe you need to do more assistance exercises for those parts. Do you do (R/SL)DLs, weighted calf raises or BSS? Maybe you could throw them in.
Also, will squatting heavily and gaining weight really push you towards your goal faster IF your goal is to dunk on a 10' rim and 7'6'' reach? With all due respect to KF and steven-miller (not that he's around any more), I think your strength levels are good, and given that (as I said a few weeks ago), there is such a discrepancy between your boss squat numbers and your SVJ, there is still a lot of potential to be tapped into, and that extends to your running as well (as I said a few weeks ago, if you could improve your explosiveness to the point where your squat/SVJ makes sense, then your running jumps would have to benefit as well).
Don't blur the line between strength numbers and jump height too much, unless you're just intending to SVJ dunk. Then it's very important. I don't think it's too far-fetched to say that the running jump is more dependent on speed utilisation and stability in the plant phase than raw strength. In an ideal world (I know you prob can't do this atm) you could maybe utilise more track work, and more pure jumps sessions just focusing on training your body in the motion of the DLRVJ. I know you did do a lot of DLRVJ practice in the past, but it was always within a mixed workout. Maybe that prevents you from truly giving a max effort jump. I think that's key to making progress, actually getting to your max jump once every 2-3 weeks in a periodisation setup.
Given all that, if you really can't access the proper facilities to do track work and jumps at 10' ring, then squatting + eating hard could be the way to go. I'd consider Raptor's setup though, or just a set-up where the focus is to increase your explosiveness so that your SVJ is around 35'' without too much of a BW change. Something like:
Day 1: Quad/calves - whatever you want to do to strengthen these - squats, calf raises etc. Maybe work up to heavy 1x6 (not too much volume but good for strength work).
One really good day of rest
Day 2: P-chain work - BSSs (for glutes), RDLs, maybe lunges.
Another really good day of rest
Day 3: Explosive work: Light pogos/tucks/depth jumps, then loaded rhythmic jump squats, KB swings (these are badass). Shouldn't fatigue you too much. Get a shitload of rest this night, and eat well.
Day 4: Good warmup, then 10-15 SVJs, record each one, stop when you're dropping off.
Rest, then start again. Keep doing this until your SVJ plateaus, then maybe look to start a block of RVJ/speed work (if possible). I have NO idea if this is an optimal set-up, I'm sure others would change the order or whatever. But something along those lines where your explosiveness/SVJ is the main objective in the short-term rather than packing on more mass/strength.
Sorry for the long post, just got rolling a bit
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