'Line skis are bad'
No company makes 'bad' skis. If they did, they'd be out of business because no one would buy them. Any pair of skis could go 'bad'. I talked with a guy in Colorado who broke 3(!) pairs of Pocket Rockets last season. I've seen Skratchs come back broken in half and missing the bindings, I've seen 1080s missing edges, I've seen Enemies delammed halfway down the ski, and yes, I've seen Lines come back damaged as well. Freeskiing is tough on a ski, especially jibbing/big hits.
Now that I'm off my soap box, the lightest ski (from my personal experience with what's out there) is the 1260 from last year. They beefed it up a bit this year. Otherwise, there is a version of the 1080 called the 1080 Grom that is just the right size for a little hucker like yourself.
Eric Peterson
Freeski Specialist
Tyrol Ski and Sports
Rochester, MN