As winter is just around the corner I was thinking about some Mods for my 2010 summit XRS. It is basically stock with a can, and clutch kit. I was thinking of Narrowing the ski-stance and was wondering if it really has made that much of a difference on the 2011. I noticed in Ski-doo brochure on page 136 they sell the S-36 handling package for $630 for the the complete conversion shocks and all. Has the new stance made that much of a difference or would I be better off spending the money on something else?