I have an older Jet 16-42 VS. What I am experiencing is a wobble in my threaded attachments (face plate, strong jaw, talon). When I insert something with a mores taper there is no wobble which indicates to me the shaft is not bent or a bearing issue. I believe it is in the threads of the shaft. Has anyone else experienced this and is there a solution short of replacing the shaft. The more I am learning the more this is becoming an issue.