I got my bike back from the LBS after shock and fork service and they said the shock's air sleeve was severely damaged. Some deep grooves were carved in the side of it, just where the sag would put the piston bushings. They couldn't find any dirt that would have caused this, so why did it happen after just 2 years? (this was the 3rd service I had done on the bike, so it's not like this is the first time the shock was serviced) I think I put something like 4500-5000 Km (2800-3000 miles) on this bike in the time I owned it, so is that the mileage you'd get from the Monarch shock? Or is the LBS right and it is due to the odd angle at which the shock is actuated due to the linkage design of the Element? The force used to actuate the shock is definitely not in-line with the shock body. It is not an expensive part, so I will be getting a new air sleeve, but I'm curious.