My buddy has a summit and this winter in 2ft of fresh he said "I felt like I was driving UNDER the snow,It would never climb on top" . So, #1- what skis work well on these in powder, I'v ridden it and I don't think they work to well. #2- his is a 151 what pitch track are ski doos and would a 159 be a big improvment. Would a 16" track work on it? He dosn't have a ton of money to throw at it but skis/track are doable. Thanks, darre