I have heard that some owners have had problems with vanes or feathers coming in contact with there cables and also some owners have had problems with the slide cutting little groovesin their cable slide. So while I picked up a NEW Guardian today, the bow shot reccommended to get a Alpine Archery Mach 5 Teflon cable slide with dampening. It increases clearence by about 1/16 of an in with allows good clearence for the vanes or feathers and it is also ALOT quieter on the cable slide then the factory on..