I would try soft baits to start. That would be worms and grubs. Grubs are great for smallmouth. In the early morning and late evening try top water Torpedo's work well. I would go small in size and fish against the bank. Spinners work great too. Again stay on the smaller size.Willow blades work well and you can cover alot of water with a spinner. One thing with bass is to keep moving. If you catch one under a dock come back to the dock and fish again later. Chances are there is more than one hanging around.
Or just a plane old night crawler on a 4/0 hook with out weight and cast next and under docks and reel slow. Once you feel them hit let them take it then set hook. The problem with worms is you will hook the bass deep and if you plan to catch and release this makes it hard to return the fish healthly. If you are going to keep a few fish for the pan. Take the smaller fish. The bigger fish are the breeding factory for the lake. Because we are in cooler water than the south they take longer to grow. These larger fish need to be returned to the water for another day. Plus the smaller fish taste better. Good Luck

Practice Catch and Release......