4 pound test. The thinner line makes a difference. I get far more hits with the thinner line than with 10 pound test. Granted, even with a good drag, a few manage to break the line. But, I still find that I catch far more bass with thinner line.
Here are 2 things to try: Berkely Gulp, watermellon colored, (7 inch?) worms
or
Yamamoto Senkos, generally the darker colors. I prefer the purple/red with flecks.
During the week that I'm on a fishing vacation in northern NY, my wife, 2 kids, and I will probably go through a couple hundred of these while fishing for bass. They're a little on the pricey side, but well worth it (IMHO.)
Texas rigged (or is it carolina? I always get it backwards) - 2/0 hook, no weight, hooked such that it's weedless (tip is still inside the worm.)
Cast it and let it sink to the bottom. Wait. Reel it in slowly. Nope, slower. I said slower. SLOWER!! Okay, idiot, you're still reeling it in too fast. Once you think you're reeling it in slow enough, slow down just a little more. You'll need a decent fishing pole (zebco poles definitely do not work for detecting very faint bites.) I like the Ugly Stick pros - cheap, durable, and sensitive enough for bass, and good at setting the hook. Generally, the bass simply inhale the plastic, taste it for 5 or 6 seconds without swimming anywhere, then spit it out. You have to detect the big bass inhaling the worm - very slight change in the tension in the fishing line. Stop reeling... stop resisting the line if it's being pulled at all... 1 mississippi 2 mississippi 3 mississippi SET THE HOOK! Little bass are easy to catch... you can't miss them. It's the big ones that are so subtle... that's why they got to be big in the first place.