If you want to send it in as a hybrid green sunfish then just do it! If they decide to not consider it as that then at least you tried. I've seen people send in applications with random guesses of what they think the fish is and they still give it to them. And people that clearly don't use good measuring and weighing methods but they still award it to them. Go for it! These are very nice quality fish, some of the best pond fish that I've seen in a while.
I agree, I told Mike the same thing. Sometimes they overlook things.
This was the response I got back when I asked for my Big Fish Award.
No Problem. Not a BFA species.
Ron R. Smith
Texas Parks and Wildlife Department