It's, like, Phyllis Diller funny.
I like delrin because you don’t risk a broken integral tenon- which is a whole mess to deal with, and may require an entirely new hand cut stem. If, per chance, a delrin tenon becomes unglued, you just re-cut some grooves and reglue, or pop in a new oneI’ll also throw this out though many will disagree: I think delrin tenons make life easy especially if you don’t have a metal lathe. A 5/16 delrin tenon fits perfectly in a hole and or mortise drilled with a 5/16 bit. There are tips and tricks to gluing them in the stem but that’s pretty easy to learn.