I am still in the learning stage with OSS. I know Dr. Willis did studies on OSS as SMB forage in South Dakota. If you do an internet search it is available on-line if I recall. From what I have seen so far myself, OSS only spawn once per year. Their ideal habitat is turbid backwaters. However, they seem to be very adaptable to other habitat types as well. I am also starting to think RBS(redbreast sunfish) make a good choice as SMB forage as well. They are more fusiform than BG, making it easier for the smaller mouthed SMB to prey on them and they only spawn once a year, making them far less prolific than BG. They also seem to prefer similar habitat as SMB. Unlike OSS though, they will reach sizes in excess of 8" and can themselves produce quality angling. There are a number of hatcheries in the southeast that sell them to include their mutant color form.