I was starting to believe I had more GSF in this tiny 1/20th acre pond than RES. I had caught a number of 6" GSF and removed them and have caught several dozen fingerling 1 1/2 inch GSF in the minnow traps. It is funny, I will catch nothing but GSF in the traps, then all of the sudden I will get mostly RES. Can't explain why that happens but the GSF seem to have a much greater propensity to go in the traps for the bait feed. I think the RES more tend to wander in accidentally.
At any rate I figured the GSF were pretty bad. So I decided to take another approach. Had forgotten about the cast net I have. Had not used it for a long time. Thought I would give it a try and lo and behold I got RES! I caught about twenty in five casts, all similar size. Pictures below.
So I think there are more RES in the pond than I imagined (or less GSF). I have just been getting the GSF because they are more aggressive to bite a hook or go into a trap for food.
I think I will start casting the net each day about five times and move all the fingerling RES I get to my main pond. Will leave the breeder size in this pond. Funny thing is, I never got a single GSF with the cast net. Either they are quick to avoid it, or I have more RES than I imagined.