I doubt that anyone on the forum would advocate the stocking of CNBG, or native BG, as a stand alone fish. The reason being of course that they would readily overrun the pond. You need a predatory species in place to control their numbers. Without one, you end up with a pond full of stunted BG, fish that are unable to achieve their full potential. If you stock HBG without a predator, you might end up with a pond full of genetically inferior fish, (not GSF however). In other words, fish that are unable to achieve their full potential. Ultimately, the solution appears the same for both BG and HBG... stock them with a predator.
You've already mentioned that you're going to feed, and you're willing to restock periodically. Your goals are fast growing big BG, with low maintenance. You understand the pros and cons of HBG, as well as BG.
I think your situation is tailor made for HBG, and I look forward to following your progress, and learning a thing or two.
