I own a 1993 polaris 750 storm. The middle piston and rings were replaced less that 100 miles ago. The outside 2 were not touched. I did a compression test on all 3 cyls today and they are all at around 110 to 113, the middle being the highest. I was expecting alot higher being that my 02 xc800 has almost 150. The sled only has about 4000 miles on it and runs like a sceaming banchee..... Do I need to be worried?