You can always decrease the wingspan like I did with my Sig 4*60. Initially at 71", I cut the wings in to the first set of ribs, essentially knocking off about ~6". Now It's at a ~65" ws and has much more snap. Keep in mind this is a bottom wing airplane, but you might use this option. When you start messing around with CG and thrust angle, your getting into some possible headaches. Hope that helps.....