I assume when you say that you are fond of LMB you mean you would like to grow big fish. The easiest way to do so is to stock BG as forage and stock less LMB than normal to give each fish more food. I'm no expert but 500 BG and 40 LMB is a good place to start. But before you stock gamefish you need to get cover in the pond and forage, namely FHM.
That's my 2 cents

0.7 acre pond stocked 2020, LMB, PS, YP.