i had the deuce carbides, great improvement over stock. Then i made the switch to snowtrackers. I often look at this site for improvements to make on my yammie. I can't for the life of me, understand why the snowtrackers isn't listed as a "MUST BUY" for all apex on this site. Its not an improvement over stock but a complete handling transformation. Unless you want wider skis for better floatation, buying skis is a waste of money in my opinion. After two seasons and 3000 miles of abuse the snowtrackers still looks and handles as day one.