It's like that all over this area too. When the water warms early, they will move shallow, and when it inevitably cools some they will back track a bit, but not to the winter staging areas, the size and contour of the specific body of water has a lot to do with it as well.
It's the best of both worlds, cause you can catch numbers and size with just a few baits (once you find them) a JB, square bill, spinnerbait and jig or t-rig is all you need. (Throw in a lipless and chatter if you must).