i think one of the main issues with SVJ is, on these forums, most people simply don't care about it.. it's a skill just like anything else.. sure it'll go up a little as your RVJ goes up considerably, but without directly training it, you can't ever expect to make huge gains in that movement.. most people on here/TVS are "basketball natured", so jumping from a dead start doesn't excite them or make any sense for the world of dunking.. on the other hand, people who do focus on svj, such as vag/tychver/steven-miller/arowe/... etc, do make considerable gains in it.
I personally hate SVJ'n, so even though it's gone up a bit, it's not something I care about.. For example, 3 years ago I measured my highest SVJ on vertec of 124" when my running touch was only 128", I was SVJ'n every workout.. Once I got bored with SVJ, it went down to 120-121" while my RVJ kept increasing to vertec 132.5" touch.
I think you'll find people more interested in SVJ on "strength & bodybuilding forums". One of the reasons, I noticed, is that alot of those people always want to be "better at something" than people who are crazy athletic. For example, if you say lebron james has 44" RVJ, they'll say, "but what is his SVJ".. If you tell them lebron half squats 2.5xBW, they will laugh and say, "but what does he deep squat".. If you tell them an elite athlete's bodyweight is 160 lb, they will laugh and tell them to gomad, etc.. that's not everyone, but it's a large percentage from what i see.. "ATG" squatting, SVJ, GOMAD, & excessive bodyweight become some kind of cult ego booster to alot of those people. I respect people whatever their goals are, doesn't infringe on my training one bit so why would I care.. Rippetoe on the other hand seems to be pretty inflammatory, he allows some really weak replies through & somehow thinks they are funny, that's always a bad sign.. If someone is sticking up for me and acting like a complete a$$ in the process, i'd tell them to relax... lmao..
pc