why not just use a type of paint that can be rubbed off, paint the rim with it or with any sort of ink or coloured liquid and then measure to see how much above the wrist the rim touched.
You win the prize for most complicated solution to the simplest problem.
I still maintain that Maxents strange whining and humble bragging about how he can't measure his vert cause he is just soooo damn high is not something we can solve by giving him tools... I think he secretly doesn't want to...
He's been given a billion solutions, wrist, backboard, using his head, recording with his phone and using physics - goddamn his name was entropy 5*(fall time)**2 is a pretty simple way to know your jump height in meters!!
The Kebeya video I posted is literally the highest two footed jumper I have ever witnessed in person. Higher than anyone by far. When I'm jumping well I'm in the air for an extra beat - this guy is in the air for an extra two beats... truly nuts. He measures using his head and the backboard...
As far as vags point... Two things. Thanks for admitting that just cause you aren't good at something that doesn't make it unathletic... second... interesting that you can't get up on the backboard, I think it's cause u use your left hand... What I have noticed is this:
1) If I want to be as generous as possible to myself when measuring my two footed running vertical I need to jump on hardwood, w a vertec, LR plant, and left handed touch. I can get up far far higher like this...
2) However, this is rarely available. So I can do an alternative.
1) I can jump for the square. If you notice the video acole posted of me, I do a left handed square touch and a right handed, the left handed is significantly shorter. That's because when you do LRL you touch w your hand "behind your body" which makes the contact of the backboard a really hindrance ok your jump. When you jump LRR you touch with your hand reaching up in front of your body and are barely affected.
But I just said my best jump is LRL but I have to do square jumps LRR. Ok, so you got me I guess I can't truly do a ME jump for the square... but who cares. It's about testibility. The square is 11'4-11'6. My reach is 7'9. If I really need to satisfy my ego I can post "hey guys, touched the bottom of the square today which is 44.5 inch jump (43" + 1.5 inch bonus because it's non optimal and I could have touched on object that high w a LRL jump)...
2) Additionally I can measure my vertical w my head. I bang my head against the backboard. I have never hit my head on the rim. I have grazed my hair on it when my fro was pretty big and have seen it on tape. I know that if I legit hit my head on rim it's 49 inch jump cause I'm just under 6' in shoes. If I increase my vertical and am fearful of the rim I can always put a foam roller on top and hit that... I tried it but I was a legit 4-5 inches away as it sits on top of the rim and so it was too hard of a target for me to aim for at my jumping level... I would have to improve to even go for it as. Target...
Is head touching optimal? Not at all. I have a 7'8.5 reach... if I cheat like people do on a combine it's 7'7. If I go fairly it's closer to 7'9. If I truly dislocate my shoulder to stretch as hard as possible with momentum and swing (like I do in the air) it's probably more like 7'11... I can't really do this with my head... so, again I could give myself a bonus inch or two for any object I touch w my head but that isn't really necessary because the bottom line is:
All you need is measurability!!! IMO the most impressive gains on the board belong to KF and LBSS. Two dudes who do not fuck around when it comes to measurability.
KF doesn't even mess around with anything but standing vertical jumps cause there is too much variation and risk. Sure he dunks but only cause he thinks it looks cool. He makes no claims from dunks but just does standing vertical jumps to a vertec on hardwood and posts clear video. He doesn't say "hey guys how high did I get up? He says that's a 38" inch jump. He gets feedback for how big he jumps in repeatable testable way.
LBSS posts look like: 15 ME jumps, best 37", worst 32, mean 35, variance 3", coefficient of variation of 0.2, Cauchy distributed, moment generating function estimates gamma.
This is good data! LBSS can take this data and know when he jumps well, poorly, etc.
This is the sad thing about maxent being afraid to test his vertical... in the end all the excuses hold him back. This is a jumping board, not a squatting board. Jumping workout data would allow him to train 100x better even if it's just off by a consistent two inches cause he is doing an absolutely unathletic maneuver like touching the square!