For a pond managed for large (aka trophy)LMB in the south if taking out a reasonable number of BG effects your LMB growth then you have nowhere near enough LMB forage. IMO for a trophy LMB pond you need forage in addition to BG and lots of it. Tilapia , GShinres , Tshad or the like in addition to BG.

There are several angles to the question so it depends. The big change recently is the suggestion to double the initial BG stocking #s. Most of the difference is not at the start but about after year 3 in the south. By then with normal BG stocking you start to be short of forage in the right sizes. Some things that make the question hard to answer are the effects of feeding , pond fertility and fast CNBG growth. One thing for sure you have to harvest LMB to match the goal.

With all that said and the fact that we don't manage for trophy LMB we still limit the number of large BG/CNBG that are removed. If I start to see many small BG spawning or other such symptoms we close BG fishing.