RE: using power bait or Gulp
I've had really good luck on my lake with a 4" Berkley Power Bait pumpkinseed color. I hook it on a round jighead and slowly drift or troll while bouncing it off the bottom.
You can't go wrong with Texas rigging them either. Soft plastics are the #1 bass catching machine nationwide. pretty universal bait for bass. Find some structure, boat docks, overhanging trees, rock beds, ledges, etc..... and have a ball.