― Jack LaLanne
Try the various Muscle Up Drills. Work on moving well and do not be concerned with volume. Instead, be super cognizant of QUALITY movement. You want to train perfect movement pathways and this is extremely difficult to do when you are too fatigued. Train smarter, not harder.
It's a special feeling when you go from hanging underneath the bars and then almost magically, you find yourself several feet higher in the air. I remember my first muscle up. It was in Concord, CA in 2011. What sticks out most in my mind was that it was not a strength issue, it was a technique issue. If you are able to do a strict Pullup and a strict Dip on monkii bars, you have the pre-requisite strength to do a Muscle Up (in most cases). And even if you cannot yet do either the Pullup or Dip in strict form, there is still plenty of technique that you can drill so that when that strength does come, you're ahead of the game. I'd also like to point out that the increased instability of monkii bars makes Muscle Ups even more challenging. Be head's up. You need to keep the bars properly balanced so that when you transition from the pull to the Dip, everything remains properly aligned. Lastly, I've seen way too many people going a little too wild and jacking their shoulders. Make sure you are properly warmed up and you have full range-of-motion in your shoulders before you make a serious attempt. Mastering this exercise is a process. If you stay disciplined and remain consistent, you will one day find yourself above the bars.
I made this video a few years back, but wanted to make sure you knew it existed as well as receive feedback on how it could be improved. Thanks for watching/reading and be wild out there.