I'm willing to bet expensive things you will get higher if you kick the legs like Adarqui is doing. That is, pulling the heels to the butt after your triple extension. You're not doing that right now and I'm not doing it either, yet when I do it the body has a totally different dynamics. You can argue it doesn't matter what you do in mid air but to me at least - it does. Maybe it's a matter of body perception/proprioceptivity, stretching, tightness, I don't know and don't give a shit. Just do that.
hahahaha....For what it's worth I do that sometimes...I think it may be a case of being more flexible may cause your legs to pop up unconsciously, where as if your tight they won't do that. As for whether it will help you by doing it, I don't think so. Being flexible in the right amount and in the right places would help I guess.
Thanks for the feedback. As of now, i'm continuing with my plan for January to get my bodyweight back to 155lbs and to get my squat back to, or hopefully above, where it was at Christmas. I'll see how i'm doing at the end of January anyway and reassess then.
Yeah it might be a sing of good or bad hip flexor flexibility. If you stay on your knees and lean backwards, that's stretching your quads since you're extending the hips and flexing the knees, putting any biarticulate muscle that's over these two joints in passive insufficiency. If your quads/hip flexors are bad you won't be able to do it well when you jump, which at the same time will mean it hinders your jump (because the hip flexors are tight so they oppose hip extension). So maybe that's still telling you something.