Burger are the BG growing well ? How big are the initial stock of BG ? If the answers are yes and 4-6 inches I would not add anything else yet. The LMB will work on the yoy BG. The BG out of that group that survive will be your brood stock and your source of large BG. After next spring if you think you have a problem then seine or trap small BG as needed. The 2 problems with to many small BG is BG stunting (no growth) and LMB reproduction suppression. Bottom line if you are feeding the BG can grow and if the LMB reproduce then you are good to go. The LMB will catch up in a hurry.

One indicator that heavy #s of BG are a good way to start in the south are the newer stocking suggestions used by FS. Twice as many BG as the old guidelines and a 25% or more reduction in initial LMB stocking #s (depending on size of fish used , productivity of the pond and specific goals).