I just purchased a brand new yet old stock McDermott HD-8 cue and would like to order a Ob or Intimidator shaft for it. The shaft just has a plain black collar. My local dealer said I would need to send the butt back to McDermott to have the new shaft matched up properly. How close will most aftermarket shafts match up without having to send the cue back to the factory? I measured as close to the end of the butt joint and came up with .868 inches. Thanks.