Graphite is occasionally used to lubricate a slightly tight stem. I've tried beeswax a few times and it has never worked for me.Also, from those of you who have tried both, is there any advantage to using a graphite pencil to bees wax?
The nail polish fix worked just fine as I was careful with it's application and evening out, and Walt Cannoy's method of gently heating of a vulcanite tenon has always worked for me.
With some of my pipes the fit is a bit more variable, depending on humidity or the season, with the stem being looser on some days and tighter on others and with most of my pipes the fit is consistent. Briar varies.
Just be careful not to ring a bell that can't be unrung.