IIRC, not much info on the forum on stocking KY bass, I remember one person doing it with a few, and reporting very aggressive, easy to catch fish. Might be good for purposes of offspring control, especially if you plan on recurrent restocking of harvested HBG, as you note. If the spots stayed at a smaller size, you wouldn't have to stock really large HBG in the future as you'd have to do with LMB.