I've used a low speed drill with a buffing wheel and had great results. 1st, I give the stem a bath in bleach for about a 1/2 hour, then wet sand down to 1600 grit. Buff on the wheel with toothpaste and then olive oil. Cover all logos with petroleum jelly.
You're gonna get a lot of opinions on this one. But use whatever you have at hand.
As far as the briar, carnauba wax is considered the best. I've tried beeswax and olive oil and it does help, but doesn't give you the luster and shine.