Ok so the Duco didn't work and the Epoxy overlay didn't work, they both peeled off.
So I took the advice of the veterans around here and stripped off all the Flax and redid the limb repair, this time using Tite Bond II wood glue. The results are very promising.
I shot about 30 arrows today and no visible signs of peeling, cracking, or any failure what so ever. So, it's all looking good at this point.
It just so happened that there was a knot on both limbs about the same spacing apart from the riser/handle area and only one was giving me problems, but I went ahead and wrapped the other one for good measure before I had any problems with it. It looks just about even like I intended for it to look that way, so all is well....I hope.