If your talking about the guy out of Littleton, Colorado they are awasome. He has adds in most sled magazines. Lifetime warranty. I have been in his shop and they are great covers. They stand up to the stupid mag chloride they use on the roads out here. The size of the track doesn't matter, they fit all the m-sleds. Had mine for 2 seasons, then bought an enclosed trailer, but it still looked great.
