Urac here. Obviously there are lots of options. But my take is that Titebond is too finicky on needing perfect gluing surfaces and is prone to creep. Epoxy should really be cured in a large heat box, which I don't have. Urac is waterproof, doesn't creep, and fills gaps. Cheap and easy to use, too. I just can't see investing all the time to build a bow and then using anything less than the ideal glue. Resourcinal would be an equally good option, but is much more expensive. The downsides to Urac is that you have to order it (Directly from Nelson Paint is the cheapest), it has a shelf life of a year, and you can't do any glue ups below 60 or 65 degrees.