RE: Great Hobby for the dead of Winter!!
I actually like to cover the crest with a clear coat, and found out the hard way that you cannot use Bohning Clear or Blue Clear over crests. I had read somewhere that guys were able to - using testors or acrylic water based paints for the crests, but I used testors and lets just say a womans mascara looks better after a monsoon!
Anyway I covered the dip (Bohning white) and Crests (Testors acrylic) with 2 coats of Polycrylic (Home Depot). I used Duco to adhere the feathers to the polycrylic, which I found out is the only adhesive that holds on this finish. If I hadn't coated with Poly I would have used Bohning adhisive to adhere to their paint.
The poly puts a beautiful finish on the dip/crests and protects the colors longer when shooting, and the water based poly doesn't smell at all, and cleans up very nicely! My wife wanted to kill me by the time I got the Bohning lacquer thinned down - whew!
I'm still learning and experimenting - not sure what is the best way or best materials, but half the fun is figuring it out ... just like hunting!