So, aeration isn't going to add much then, is that the consensus?
I wouldn't be without them either in my four ponds especially in the summer as it allows my fish to occupy the entire water column and keeps the pond healthy. If I didn't have them this year I'd probably see dead fish when the ice goes out.
There will be a lot of dead fish floating up this spring in the midwest for ponds without any aeration. You can count on it.