If speed is not a big issue what not look at using Vinyl paint? It require and base coat of white, then the color and then the Clear coat for gloss. It's more durable than powder paint and the Clear Vinyl doesn't mess up the colors even over Powder paint. Just a thought if the paining is not giving what you want.
Skip
Peak Vise Dealer
Tying Materials, Chenille and Hackle
For Pictures of my Crystal, Nylon/Rayon or
New Age Chenille Please PM Me! Also I
have the Saltwater Neck Hackle and some
colors of Marabou plus other things!USMA65 thanked you for this post