I do NOT operate feeders at my ponds, but I believe most of the members reduce their food distribution going into winter.
I can't remember, do you live at your pond?
If so, I believe most of our feeding people closely monitor their fish feeding activity going into winter. As the activity slows, they gradually cut back on the feedings.
Hopefully, some of the experts from around your latitude can give you some more solid advice.
P.S. Your fish pics above look good to me. How old are the SMB and the HSB? They both look very healthy to me. Based on his stomach, I assume you caught that fat BG near the feeder. Finally, the head on your CC looks too small to my eye. I suspect that is a youngish catfish that is rapidly putting on weight due to your feeder.
