I've done pretty good on chickamauga, which is surprising to myself because I usually do better on carters or tims Ford. My biggest this year was over 20#. I've been having luck doing lots and lots of trolling and throwing large T-rigs when I think I have found some on my fish finder.
Follow the gulls and loons around Harrison bayarea and from the mouth CFP to the ramp. Throw rigs, jerkbaits, white 1 oz buck tail jigs, if using braid, set your drag or you might break or loose rod. Electronics are important as well.
I caught a few a couple of weeks ago around the mouth of wolftever, biggest was over 20, smallest would have been in the 12-15lb range. look at the edge of the creek channel coming out with your electronics, you'll see them