Can't help you with the Contact Groove, have never skied it. I do own a pair of the Contact 4x4's, FWIW. From my experience, the 160 SS may be a little short for you, most people your size that I know of are on the 165. I have skied both the 165 and 170, and the SS Magnum in a 177. The 170 tends to be a little stiffer than the 165, IMO, but I'm a 200 pounder, so comparisons most likely will not be the same for someone of your weight. The SS is a versatile ski, especially for an Eastern skier, in a variety of conditions, under the right feet. But make no mistake, this is not a wimpy ski. The carve plate underfoot gives it some muscle. It will tear up the groomers, as well as bumps and off piste, but may not be the ideal ski for learning to ski more difficult conditions with, it requires some imput. If you're not sure, it may be a good time to demo, there are plenty of demo events around at this time of year.