skis are like shoes. one size/brand/style does not fit all. in your situation, brand "A" might be the best ski available for your sled, but if your sled is not set up to run that particular ski, you will think its the worst ski ever. your buddies will be using brand "B" and raving about it, and you will use different carbides and hate those as well. there is no cut and dry this is the "best ski ever" for your sled, and a bolt and go wont happen. based on the cronies that hang with us, they like the mtn skis, oem from yamaha. cheap conversion, all your hardware will interchange. you need the bottoms, bolts and collars. then play with different carbides to suit your conditions and style. it will set you back less than $200. alot cheaper than any aftermarket skis.