#1 down size. Use a 1/4 or 3/8 ounce jig. When you put on the small chunk trailer, hook it all the way through the body and slide it up so it stays up close to where the skirt band is at. This will create a smaller profile and still slow the fall down. On a black and blue jig, dip the tips of the chunk in Lime Green "spike-it". On a Cumberland craw color spike it with just a tiny bit of orange followed by the lime green. The green tones down the orange just a little. These are my 2 favorites on Cumberland and I fish them on 12 pound Berkley Vanish. Small hops, followed by shaking it a little, then small hop again, just enough to get it off of the bottom. Let the fish tell you where to fish. Start shallow (at the waters edge then work it to deep) Once you have worked it way out, swim the bait in letting it drop a couple time as you reel it in. Sometimes a Ky or Smallie will kill it as you reel it in.
With shakey heads and other plastics I would follow the same instructions to find the right depth. Remember....Slow....slow....slow.