Well I fell victim to poor trail conditions over the weekend or at least my single Pro Lite backers did. Out for the very first time after countless hours of maintenance over the past few months and even while taking it easy through the bad spots in the trails i still lost 2 middle single Pro Lites. None of the outside singles pulled and i know they made solid contact with the rocks and roots we were creeping through because there were some that had spun and it took allot of force to spin them back. Absolutely love how these things hook when on hard pack, but now i am second guessing using the singles on a replacement track since this track now has two extra windows! I could never get the sled to hook until going with studs on the outside so i have a dilemma. I removed the 192 1.57" megabites and reinstalled them with doubles and single Pro Lites. The pic show the first one that tore a square in the track the same size as the backer and the second stud left a perfect window the size of the backer. The track has 4500 miles on it almost all tuned. Now What?