I am 48 and live in Alpine Meadows. I probably ski faster than you, but I am still old school, as I like to carve instead of slarve. I bought a used pair of S7's last year (not sure what year but all black). They were pretty hammered, so they might be a little skied out, but I would say that they are super easy in powder. I picked these skis because I wanted a ski that was turnier, as I still like to carve turns through the trees or runs like chute 75. I carry a lot of speed, as I make very clean turns, but I am not into the new school charging style. The runs in Alpine are a little short to ski that way and not feel like you wasted your run, since you only got 3 turns and your run lasted all of 20 seconds.
If you like turny in powder the S7 is great. If you are into big sweeping turns, there are better skis for you.
I also want to say that I will only take the S7's out in 20" or more of snow. In 12" they just don't deliver the kind of precision or level of performance that I want.