A few things to add.
First off, the new pond HBG record is now 0.6 pounds flat, almost 8" long, and I believe this to be a female...
Secondly, I have noticed several of the fish this year (and a few last year) to have fin damage. Mostly a split down the center of the rear fin and a few with odd anal fins. The picture above shows both.
Next, this 1/2 pound male below has some inflammation around it's eyes: another circus fish. Most likely a bacterial infection...I don't know.
Lastly, most of the fish I catch appear to be females. Maybe only by a small margin, but my males are either too smart for the hook, my male to female ratio is fairly even, the males are busy with spawning, OR I haven't achieved pond meister status when it comes to sexing the fish???
PS: I have found that a small piece of bread smashed onto a hook yields the best catch rate.