That may be the issue, After installing the 125 in it I have been playing with the cg, though I do have the rates very high, Ive always set my plans up that way for some reason. It seemed better this saturday and sunday, very stable, well unless you count the one time I stalled it at about 80 feet and it fell out of the sky....the good thing was it pulled out at about 25feet above the ground....lol at least thats what everyone is telling me.....lol it does dead stick very good....ran a tad bit t long and on final righ above the run way she ran out of fuel...Gatta love thie plane.....