I'm 5'10", 163lbs, aggressive skier. I ski a 2007 K2 AK Enemy 179: they're awesome, but a bit heavy, no good for the park or backcountry booters. I want a versatile ski that'll do everything: pow, park, groomers, crud. I tested the Salomon Rocker 2's, and I liked them, but I also found them too forgiving. Is the Opus at 178 the ski for me?