Good to know the function of the radiator coolant flaps, but I will use them as air brakes to make up for the lack of a full split flap. For those that fix the top surface, I'm sure that would still be an effective way to slow the plane down.

I did try the acetone to remove the decals, and it worked well. Took off the wrong colored yellow decals and added a "double white chevron." Nice to have one that looks a bit different than the others. I'll have to get it outside again for some more photos, but until then here is how it looks on my pool table.