A couple wine bottle stopper kits and the necessary threaded chuck arrived from PSI today, and I'm wondering how best to attach the wood blank to the chuck. Do I drill and tap a 3/8" threaded hole in the blank, or just drill an undersized hole and let the screw chuck cut the threads in the blank? Seems to me the tapped machine threads in the wood would be better, and not really any more difficult to make. Am I on the right track? Also, once it's all turned and finished, do you glue the stopper onto the turned piece, or simply screw it on?