I'm 57 and a former racer (long ago) looking for a frontside/carving ski primarily for groomed trails and hard snow. My skiing gravitates toward relatively fast, moderate length GS turns, although I also spend a lot of time making shorter turns at slower speeds in order to survive on overcrowded Northeastern trails. I'm 6'/182 lbs. and currently coming off an ancient pair of Atomic GS:9's in 170 cm. I've been pretty happy with the length and 15m radius of the Atomics, although at full throttle they're occasionally not quite as stable as I'd like.
Among other skis, I've been looking at the Head i.Supershape Magnum. The Head website suggests the largest available size (177) is the correct choice. The 177 has close to my desired 15m radius, but I've always thought that the largest size in a high-end ski line is the domain of the >6'2"/200+ lb. skier. For those of you who know this ski, should I be looking at the 177 (just above eyebrow height) or stick with the 170 length I'm more familiar with?