Returning to the ORIGINAL question of the OP, yes the UV resins are easier to work with than epoxy, but I cannot get as symmetrical a head with UV products as I can with epoxy. That begin said, you just have to make sure that you have one that will flow well enough. What I've been doing is taking the finished fly out of the vise, and while holding it with a pair of hemostats, squeezing a small bead of UV resin on, and then working it into the shape I want with my bodkin, before hitting it with the UV flashlight. The purpose of the hemostats in my experience, is that if you do not keep the fly moving, the material will sag in one direction, so I rotate to keep it in shape. Process is pretty simple with very little practice. I still prefer epoxy, but the UV products work well enough. You might want to consider though that at the price, you could easily pay for a drying wheel with the difference between epoxy and the UV resins, if you tie a lot of flies. YMMV.