When you do the final assembly by applying either the Epoxy or the CA and then turn the stopper into the top does any of yours get real tight about 75% of the way in? If so how do you get it to turn the rest of the way in?
No glue dude... :no:. Once the threads are in the stopper, it is unlikely to come out on it's own anyway. As mentioned above, cut the threads a little deeper than you need. For added assurance, I chase the threads with a tap. When your done with your stopper, apply a tiny bit of beeswax on the threads. Screw the top on... viola, your done. :icon_thum