I used to replace tips by hand years ago and I have experience with and access to lathes. Is there a course, virtual or otherwise, I can attend? Or some sort of certification program so I don't void someone's warranty? I'm not interested in general cue repair, and I don't want/need Predator to send me business, but I would like to be properly trained in how to replace tips on Predator (and other CF) shafts.