I'm considering K2 lotta luvs or one luv. Ski Tahoe. Advanced, not quite expert. Want to be sure I get a grip on ice (yes we have it), but also go through the full range to crud/powder. I have a pair of phat luvs for the really nice soft days. I'm 60, 5'9", 155 lbs, not a wild fast skiier, but like to go steep--some days. And, I'm a bit lazy, get in the back seat, don't always carve, etc. However, I've skied since I was 5.... Also have totally trashed knees and so want to make it easy...I think that shorter might be easier on the knees. My current six year old T9 Axis are 174, my phat luvs...probably 163. Any advice much appreciated!