I'm making my list of things to do to the SRX this fall and replacing all the bushings and sliders in my 2 clutches tops the list.I started the list with the usual wearable things but would like to know if anyone replaces the rollers in the primary on a "regular" basis because of wear or mileage.My sled has over 20000 kms (12000mls) and other than having that many miles on them the rollers are still actually in good shape IMO.They are still tight on their pins and I haven't noticed any flat spots or other deformities but wonder if the outside diameter would wear away from contact with the weights enough to make it necessary to re[place them.I do have a good set of verniers I guess I could measure them all to check the wear but do you guys just out and out replace yours to take the guess work out?