Sled is a 850 163 3 inch. 384 miles and I Have not been able to make it to the the mountians yet so I have been riding around home. Snow is nowhere near what the mountians would be but it’s deep enough to ride in without wrecking the track. Went to add a new SLP primary spring and adjustable weights tonight and found the stock primary spring broken, and when I inspected the belt I found a crack/hole on the underside of the belt in the middle of the lugs. I was running 72 g weights (Polaris) and getting 8400 ish rpm (out of break in). It did drop to 8150-8200 ish Last 2 rides which I now equate to the broken primary spring (maybe?) I have attached a picture of the belt. I’m curious if anyone has any insight or anything I should check as I don’t think the belt should be down after 384 miles of low snow running. Could the broken primary spring or bing under weighted have affected the belt?