RES should be added to your stocking plan. They will help keep the snail populations down which reduces fish parasites (black spot disease and others). I added 90 RES to my 1/4 acre pond, but I knew the snail populations were high due to high nutrient levels in my water. 40-50 would have been a more acceptable number for a 1/4 acre pond with clearer waters. The yellow and black grubs on my fish were pretty abundant the first year as were the number of snails seen at the banks. This is the second year and I see alot less snails and parasites. I have not seen any of the RES since they were stocked however.
EDIT: Give your FHM's all this year to do their thing and stock all the fish next spring at the same time (in simialar sizes, bass being slightly larger). You want the predators to start controlling the HBG YOY as soon as possible if you want larger HBG. You would want the HBG to pull off some spawns before adding predators IF you wanted larger faster growing bass.
