David Odenwald (@kahu)
It's been a while since I have logged in on Imodeler. You have certainly made some good progress with your TBD. I also mask off the red / white stripes on the rudder and paint them on. I have had too many troubles with decals not wrapping completely around the rear of a rudder. It is a pain to do, but it sure looks 100 times better than an ill fitting decal does... and chances are the decal will start to flake away along the edges as it ages. I had several kits I built as a kid that this happened too after being suspended from the ceiling in my old bedroom for a few years. Not cool.
Did you ever figure out your Blue Gray color questions ? Just before Model Master was discontinued, they did come out with a Blue Gray color in the enamel range. But I don't know how successful you will be with trying to find it now. I have had goo luck with using MRP colors. They are an acrylic lacquer, and they offer the Blue Gray color.
PS: That was cool to check out the website for the Yorktown at Midway. Thanks for posting it up. It was a bit eerie looking at the various weapons that were still pointing up towards the sky, and being able to look into the hangar bay from the outside was incredible as well.