I have had great luck joining woods by using liner material between the two. So far, there have been no issues with customer complaints on the woods doing anything wacky. I think using G-Flex epoxy (which will flex) along with the liner material acts like an expansion joint in a bridge. The woods can move ever so slightly and they don't buckle or crack. Between all that epoxy on the back side and in the joint- combined with the pins, I don't know if the wood can move all that much laterally. It may swell differently and get a tiny bit proud of the other at times, but that's no different from having a wood handle and a metal bolster.