Looking for some help! I'm an intermediate, not really aggressive, but would like a ski that I can turn relatively quickly. Currently have Salomon X scream 174's (turn radius of 20). They seem a bit long and tough to turn quickly (short turns). Looking at the AC20's in 163 (14.5 radius) or 170 (16.1 radius). I'm 5'9" and 180lbs. I dont "bomb" down the runs, but go undercontrol and sometimes at moderate speeds. I assume the 163's would be easier for me to turn, but not sure if they will feel unstable at moderate speed? Would the 170's be harder to turn? Any thoughts on what length to get? Thanks.