You should read “Strength Training and Coordination” by Frans Bosch. It describes the motor control strategies used at high speeds or high forces. It discusses this topic in-depth
Start light, progress slow
Regardless, discussing this with you is no longer civil (including the way I’m responding), so I’m butting out from now
What if i wasn’t, but could still squeeze out 5 reps at twice my bodyweight? What would you say then?
Why not 6?
Because my body leverages said not to 
If you can get 6 you can get 10. And if you can get 10, you can get 15. If you can squat a weight 15 times, you can squat it for 20. 
WHO SUMMONED ME?!
I was squatting on my ship while crossing the South China Sea and a large wave caused the ship to rock fairly aggressively, leading to me falling backwards with the loaded bar still on my back. Had a nice bruise from that one.
US Navy - making “Stability Training” cool before the Bosu Ball got involved.
Idk if you just made that up or if someone else did, but either way I freaking love it and will totally be stealing that.
Came up with it on the fly, but I’m sure I’m not the first.
If I am - then I want to trademark it so the navy can pay me during it’s new ad campaign =)
Heya,
Coming into this late, but since one of my favorite sarcasm alert posters wanted to drive many of us to distraction yet again, let me add the following:
Take care.