Flew my Edge yesterday with the r/c showcase 1.8 up front the plane is set at 5and 1/2 inches back and it was very touchey on the elevator at this c/g. Will add some more lead and try it again tomorrow. Other than that it flies very well , actually had a heck of time landing it because of the c/g setting. I even had some expo dialed in to elevator. The 1.8 hauls it with authority for sure.