Sorry to leave you hanging out there. This is my first post so...
The Men's version is the 724 AX3; you are correct. It is a new graphic, and name for last year's Vertigo G3. The women's version, the Gamma, is a bit lighter, softer flexing, and comes in shorter lengths. The ski is one of the best values around, because it is "older" technology, and is over shadowed by the newer 6 star and 724 Pro. This ski has been ski of the year, and was Volkl's number one selling ski prior to the Supersport last year.
With your stats (I'm 5'11', and 155lbs.) you would have a good time on this ski all over the mountain. I'd recomend the 177, (especially if you're adding some pounds down the road) but the 170 is an option if you really want a quick ski in the bumps and trees.
It's an easy skiing ski that experts have a lot of fun on, and again is a great deal. I'd also recomend the Motion binding system, if you haven't thought about it yet.