David Willis is exactly right. What you will find is this...either smallmouths will survive your habitat, or they won't. Smallmouth bass need cooler water, depth, rip-rap..rocky cover. If you have smallmouth environment, smallmouth will survive. The next problem, though, is how well they can survive, and compete, in a community of fish. If you have smallmouth with bluegill, expect bluegill to dominate by number, if not by size. If you have smallmouth with largemouth, expect largemouth to have the upper hand.
Where I have seen some success with smallmouth and largemouth are larger private lakes, say bigger than 30 acres, that has cover and habitat for both fish. But, after several years, don't be surprised if smallmouth disappear when competing with largemouth bass.
