yeah i see a few here and there talk about how well theirs held up, and how many miles, but clutches is all i do, 100 hours a week, from every walk of life all across the country, and you gotta understand the volume of clutches i do, i see no less than 30 polaris clutches per week for rebuilds or service or repair and the XP900 and 1000 clutches on average are significantly worn past most of their limits in the 1500 mile range. just becasue your clutch lasted 5000 doesnt mean the majority of them will. i see significant wear around 1000 miles, and the vast majority wont make 2000 miles. you made it 4000+ then consider yourself a lucky one cause thats definitely not the norm from what i see every day. blowing them out after a ride doesnt matter, sure it helps, but thats not what causes the wear i see, the rollers in the spyder wear the bushings out from the engine harmonics causing the weights to shift side to side during each engines pulse. this bushing wears out in the roller and the rollers then get slack in them, which causes the roller to quit rolling and in turn makes the weight drag back and forth which cuts flat spots in the roller and eventually chew the weights up.
i do happen to have a pristine 2012 Rzr 900 here at the shop just brought in for "clutch noise" that an old man rides down his driveway to check the mail and ride over to a bike riding trail to carry his 10speed bike down a gravel road, 3000 miles and the clutch actually looks perfect. better than i ever imagined. the noise was the carrier bearing, but in these 3000 miles i bet this 60+ yr old man has never put his foot to the floor, RPM low = less engine harmonics which allowed the clutch to last as long as it has without wearing itself out.
if you drive like gran-paw they can last 5000 miles.
if you drive like you wanna have fun, dont expect 2000 because they dont typically last that long.