bought my sled new, the belt was about a 1/8 above the sheeves, put 26 miles on, now it's 1/8 below. talked to my dealer he said add a shim. so i had to add 2 .030 shims to bring it back up. now i have 0 room for another shim, what happens at 100 miles, will the belt drop more? if it does i might be able to put another shim in but not 2, its full of shims already.