I'm relatively new to the sport, and as such I obsess over gear. My wife, on the other hand, has been skiing since she was a kid and doesn't know or care much about gear. She skis on what she has. She loves the idea of new skis, but mostly because they are pretty. Though she's an advanced skier, she doesn't know anything about the technical aspects of the equipment.
She's been skiing a pair of K2 Tru Luv skis in 160 for the last 6-7 years. I decided she could use an upgrade, and picked her up a pair of Volkl Kenjas in 163.
I was thinking that she could probably ski something longer, and might enjoy doing so a great deal more than the 163s, but I don't know much about pairing skis with the skier.
As mentioned, she's 5'2" and can ski anywhere on the mountain.
Am I right in thinking that the 170s might suit her better, or is she better off with the 163s at 5'2"?