The pulleys on a '01 Xt are getting seriously worn, two chipped teeth on the lower, went and salvaged basically new pulleys from my LBS, but have always wondered how those trick looking alloy pulleys worked. Have heard bad things about the Carmichael type, breaking and being difficult to set up. BikeWorld.com has Bullseye brand pulleys, sealed bearing and the like. Should I stick with my current set up?