We are in southeastern South Dakota and have no problem with both largemouth and smallmouth. We actually catch more smallmouth than largemouth. You might consider adding both to your lake. Both species do well together. What smallmouth tend not to do is reproduce well in the presence of largemouth. At least in our case, what this means is that we have to stock smallmouth as their form of reproduction. In a small lake, that doesn't seem to be much of a problem. We never remove either species to eat as we need them as predators.
