I now have salomon all mtn 160's. I ski mostly in New York on groomers. I'm going to Breckinridge over spring break and am looking for a twin tip ski. I want it to be able to handle some pow but still carve the groomers back in NY. I do basic arials and sometimes some rails and boxes. What kind of skis do you suggest and should i move up to a bigger ski like 170s?