Sorry David. I am not trying to hijack your thread, but it sounds like you may have the experiance to answer my question about paint.
I just built a Super Aeromaster and it has a turtle back, both upper and lower aft fuselage. In the past I have covered with Koverall and minwax polycrylic and painted. But it has always been solid fuselage's. When I have covered and painted open bay wings I have had some prblems during the sanding phase.
Would you recommend using the koverall and minwax overthe turtle back and just being careful as H%$? Or do you have another method for open areas? Sorry again.
BTW...I got the local sign shop to make me a sheet of stars to stick to my paint. They used scrap vynil and gave it to me for free. Of course, I know the guys very well so that always helps. The point is, masking and painting that many stars would have been an unreal task.
Even tho paint looks better blended in at the seams, I think an N number in vynil would look fine.

Ijust read the thread again and it seems as if Imissed the boat. Isee you all allready had the vynil idea.