Shaun, I use PVC tube for shipping bows too and with good success. However I saw a pic on PowWow of a 4" schedule 40 PVE bow tube bent in half with the bow still in it. How they did it I can't imagine.
I'm ready to pick out a stave and get started.
Thanks Kelly and Kris. You guys make a great team for wrangleing this routy bunch of bowyers.
I'm glad to be a part of the TG Bow Trade again this year.