You'll gradually be adjusting the 3 in 1 more and more and more in time to compensate for the loss power in the tail...You'll notice your proportional is now not the same place it was new, or with a newer motor...It's getting maxxed out, and one day it will just go all at once...You could test the tail to see what it's putting out power wise, but Mrassm will have to help ya with that...Along hopefully with a few other hints to check. Maybe make sure your gear mesh isn't to tight or loose also...This can effect rotation sometimes also...I'am a little rusty at the moment, been gone for the past month..Lol.. Good Luck Capone, you'll get it figured out... Jeff