I used Rustoleum Sun Yellow out of a rattle can to come real close to the covering on the Katana. I used Rustoleum primer, then the yellow, and then Rustoluem glossy clear. While the match isn't perfect, it is much closer than stock. I have used Rustoleum in other glow models and it has stood up well to 15% nitro. I am waiting on digital servos for my Katana and hope to have it in the air in a week or two.
Jpflyer