I agree with Mr. Cody about having a trophy panfish pond. I think you will be very limited on bass quality. And i never liked the idea of hbg due to the gsf offspring.
It was almost impossible for me to get 5 inch bg after the otters got in my old pond and that is the reason i built the cage. It was no problem at all for me to raise bg in it. And like the picture shows, i have just left it in the pond and had them take up home in there numerous times. My friend has a 30 acre quarry that he is stocking with my fish. He comes ever so often and lifts the cage and gets the bg. It probably didn't help, but i released those in the pic back in my pond. My thinking was this might offset a season of inbreeding, but that is a whole other subject.

Scott Hanners