Sshimatzki

"Immediately upgrade the bearings in your rail cartridges to ceramic bearings. I had shifting problems as well and it took forever to finally diagnose the issue. It is real easy to do." having major shifting problems... Any ideas? I haven't seen an update from @@chucktaggart yet as to what ceramic bearings are referenced. These are supposed to be HIWIN rails, I thought they are the best? Why would you need to change bearings on a top of the line rail carriage?