Thanks Theo,
Is there any reason not to incorporate both the combinations you have suggested? Why not the HB BGs? I like fish that are fun to catch and good to eat. Perch, bass (LMB & SMB), and wallies sound great. The only other fish id like to eat would be RT.
I should have mentioned that my pond has a maximum depth of 20' and the overflow discharge is from the bottom of that depth. Some of the contractors thought I was crazy. Also, I stacked about a dozen wood pallets on shelves about 3' to 6'below the water surface in a couple of locations around the pond edge for habitat. Next summer I'm planing to install a wind powered aerator, no electricity on the farm.
Mike