Well, I appreciate all the comments, but there really is no special skills or magic involved here. To eliminate the ridge down the center of the canopy, I first used a round hobby blade to carefully scrape away the raised material. Using the round blade minimized the contact between the two and left a smaller area to repair. I then used a Flex-i-file triple grit polisher/finisher:
I have one I split in half to give me a polisher about a half inch wide, and with some water for lube and using the two finer grits (the black is a bit too aggressive for this) I polished away, changing directions and patterns (back-forth, circular, etc.) several times. When I got to to the point where there was mostly a fine haze still left, I then went to work with the toothpaste (Colgate cavity protection-no gels, whiteners, etc. just plain ol' white minty tasting toothpaste. Usually buried on the bottom shelf below all the fancy crud) A piece cut from an old cotton t-shirt for a cloth and adding a dab of the paste to the cloth wrapped around my fingertip, I went to work. Here again, I changed directions and patterns often. I dabbed on more paste as needed and it really didn't take long.
As to the wind screen, keep in mind you are only seeing the black as it shows through from the underside. The outer surface is still unpainted. I swear by the use of Parafilm "M" available from Micromark. Read how to use it here:
Parafilm
The secret is to use a new, never been used #11 blade to trim around the edges after it has been applied.
On slight advantage I have is actually a disadvantage: I am very nearsighted, and when I remove my glasses, I can hold the piece very close and see every detail in perfect focus. This allows me to trim the masking very so exact.
As to Mom, I'm more than a little embarrassed and ashamed to admit how much that, with my being in my mid '50s, just how much this domineering woman had control of my life. But blood being what it is and my being a "good son" and all, I could not walk away, as much as I wanted to. I know it made me a laughing stock to my co-workers and friends. The guilt is a powerful weapon, one she used without mercy!
Jim
P.S. A side note here is that I also polish areas that are to receive decals to eliminate any possible silvering. You have to be careful though. I cracked one of the wings of my Phantom when i applied too much pressure.
J