RE: Sig 1/6th J3 Cub
looks good.
i, too, will use koverall but i'm going to dope it. i did try water-based poly on the elevator that i've already covered with koverall but i didn't like the way it looked so i decided to go the dope route. let me know how your experience with poly goes. i want to try latex red as the paint coat. still not sure what fuel-proofer to use.