Just curious if anyone out there has tried the performance clutch spring kits offered for the Grizzly 660 and what kind of benefits did you recieve by installing it. I havent had any problems with my clutch and I have been running a bigfoot kit with 26 inch mudlite tires. Last week I purchased a new set of mags with Maxxis Bighorn radials in the 26inch size. Maxxis 26 inch tires are actually 27.5 inches tall which are a lot larger than the mudlites were. They scrub the fenders just a tad without a lift kit. I havent had the chance to try them out yet due to recovering from surgery 3 weeks ago, but I am sure the difference in size will probably hurt the low end performance. Would it pay me to spend the 125 dollars for the clutch kit?