Well, I don't have smooth-on epoxy, but I do have high strength flexible epoxy, West Systems G-Flex and also West Systems 105/205 laminating epoxy.
Fotunately, it never hinged badly enough to damage the glass on the belly lam, it still looks good. Maybe I will just go for it and use it exclusively for form training, not worrying about how it bends.
I shot a lot of carp, stingray, and shark with this bow over the years, so I would like to get it serviceable in one form or another again. It was a decent bow.
Thanx! I will report back with results.