PondDragon, do you hand feed pellets or mealworms? If not, feeding could accustom the sunfish to your presence. Mine anticipate my throwing food every time they see me. As a result they are very quick to bite anything I drop into the water until I've pulled in several. After that I have to tantalize them with a different bait, different presentation such as movement or no movement, a small handful of their favorite food, nearly any other changeup.
Try the renegade pattern of dry fly fished wet. The double hackle seems to attract them. Chartreuse crappie nibbles will get their attention. These don't stay on the hook well so rebaiting after nearly every catch is needed. The couple of colors of GULP maggots that work best for me are natural and chartreuse. Power Bait Honey Worms are hot in my pond right now.
The various curly tail grubs and small Power Bait crayfish imitations surprisingly are ignored.
If Optimal BG pellets are floating on the pond's surface when I release a GSF, and I can visually track it after I let it go, I'll often see it head over and immediately start pulling Optimals from the pond surface. GSF are incredibly bold, aggressive feeder when they're hungry.
