dbw1968,
Left alone and without our intervention, Nature will achieve a balance in your pond. The balance achieved may or may not be what you consider desirable. In my experience, a small pond stocked as yours was will tend toward small LMB and large BG, as the eventual balance...much as you described.
If that balance is not desirable to you, then intervention is required. What would you consider a desirable balance condition? If its larger LMB, then many of the small ones must be removed. If you also want the large BG along with the larger LMB, then overall fish populations must be maintained at relatively lower levels...only so much biomass can be supported.
Regarding catching conditioned LMB, as Ryan suggests small BG work great....but I have found something that works even better than small BG and that is small live Tilapia. They are incredible LMB bait, simply incredible.
