From what I've read, hide glues are better because you can make adjustments in tiller, twists by heating the problem area, and fixing as needed. If you use an epoxy, better get it right the 1st time. And if you mess it up, like I'm prone to do, with hide glues, you can soak the bow in a tub of water and reclaim your sinew and horn, as the glue dilutes. That's my guess.