I don't know patoka all that well but Barkley I just use much bigger baits and slow wayyy down when there is a cold front. Start out a little more and go to it. If they have started prespawn I doubt they go far. But then again Barkley is a total different beast. Mostly all they will do is go down the closest ledge about 3' and hold there for a day or so. I'll throw a 10" culprit with a very light weight or no weight at all. Bring it over the edge and let it sink as slow as possible. If they are there they munch it. I don't know if it's me or not but Barkley is a lot easier to get a pattern going than patoka. Patoka seems much tougher to me. I guess I just don't like patoka.