It's pretty cumbersome to do this with squats. I've tried it before with a leg press, but I did it single legged so I could lift it back up with two feet. i was sore for 5 days and my legs clearly hypertrophied over that period of time. But as LBSS has said, if you haven't done much conventional training, don't do anything crazy. I did something like this when I first started and developed piriformis syndrome, I still have it, but it's not bad anymore.
About this article, the author of that report suggests that eccentric training will help with producing muscle power mainly due to the increased hypertrophy and length of the muscle. He goes on to say that any increase in muscle size will improve muscle power in high speed movements, no matter what. I cannot tell you how far this is from the truth. He mentions tendon stiffness very briefly in the end.
I'm still uncertain now how physiologically muscles and tendons produce more power from either strength training or plyos or both, and how strength training transfers over to high power activities, but one thing that is clear to me is that heavy resistance training makes muscles slower. There is obviously a conversion of type iib fibers to iia, but beyond that rate coding is slower. People on this forum will tell you to get stronger and stronger... but whether or not that's right for you really depends on your body type. Furthermore many people on this forum get so interested in strength training, they don't do much jumping and continue to get slower and more strength dominant.
Shorter stockier legs, shorter toes, indicates strength dominance, less tendon elasticity in general... so ST might be a better route (maybe). Longer legs, longer toes may indicate greater tendon elasticity and plyos may benefit you more, or rather, you may respond to plyos better. There are plenty of athletes that only do plyos and become high fliers and can't squat shit. But that doesn't work for us for the most part. Similarly, getting "stronger," and I put that in quotes because muscle strength gained in a squat doesn't transfer over to a running vertical jump for everyone the same way so the "strength" being applied during the jump is questionable, doesn't work for everyone either. You hear a few success stories here and there (Kingfush on this forum but i haven't seen his running vert not sure if it exists or his sprint times but if you want to squat to improve your vert, take at least 2 years and devote yourself to weightlifting. Many here take that route, and I haven't seen a single success story yet except for kingfish. As a newbie on this forum, I want you to synthesize your own ideas, like I did, instead of being sucked into the dominant paradigm.
Getting stronger over the past two years (not being able to squat 225 to being able to double 315lbs for two sets) made me slower, and decreased my running vertical jump. But I didn't sprint or jump at the same time. Currently, i am improving my lunge strength (right now doing 190lbs with each leg with dumbells) while doing plyos so we'll see how that goes.
My best vert has been obtained before I could squat 225 comfortably for reps, and afterwards. So clearly something is going on other than muscle size that helps produce "power."