i am currently on the volkl karma's as my all mountain/park ski but i'm looking to get the K2 Silencers as my all park ski. I'm 5'11-6'0 @ 140lbs. I know im lighter than most people my height, but I plan on gaining more weight soon, so should i choose the 169 or 179? I'd like to use them next season as well... and I dont think i am going to grow any more than 1-3 inches.. IF that. or what other ski do you guys recommend?