nobody...Something is amiss here. I have a YS110 but I can only get about 13.5lbs thrust. (probably because of my high elevation, 4800') We get about 10.5 on the Saito 100 with 30% nitro. I use 30% on the YS also. My Mayhem weighs 7lbs 12ozs, without pants or pilot. So your weight makes perfect sense. I'm not sure your thrust ratings do. But anyways, it still should knife edge like crazy. I have my CG at 5 3/4" and my throw on my rudder is hitting the elevator (almost) as well. I don't even have to use all the throws. Mine will even KE loop.

The first thing I would do is try 30% fuel and see if that makes a difference. The other thing I would think about is how you start the KE. I come in with zero throttle and turn on the side and then pop the throttle to get the nose elevated. Then I give full rudder authority and modulate the throttle and reduce the rudder to where I like what it's doing. I would guess I'm at about 50% rudder throw and 40% throttle to keep nice level KE.

Are you getting a lot of coupling? Sometimes a way rearward CG will cause severe coupling which takes power to overcome. Maybe move your CG forward? I think your setup sounds right/good. Maybe something we're not thinking about.

Thanks
Barry