I had some older zipper limbs, that were not fast flight compatable. After around 5K shots, I started getting cracks in the overlays. So I decided to grind off the wood overlays, and try my hand at phenolic. The first layer was supposed to be brown, but turned out yellow. Not sure if I like that.
Kanga helped out with the advise. Many thanks brother.
I made a crue heat box with a cardboard box and a 250watt light, to get temps to 140F to cure. Threw on 3 coats of spar urathane and heres what I got. Now I can use FF string, and gave my old limbs some new life. Only took 3-4 hours labor.