There is another A990 car near me (besides the blue one). The other A990 was never raced and is supposed to be very original. I'll see if I can talk to the owner about taking a look at the scoop.

I also have a hard time understanding the seam sealer but anything is possible. All it takes is some guy thinking that is how it is supposed to go together. Maybe they tried it on a few cars and then decided it was too messy. Or maybe the caulk gun broke so they stopped doing it. We'll never know.