I use a similar presentation - think really really small - to catch whatever panfish are in the pond I'm fishing and use those little guys as bait. But as you discovered, sometimes you get more than you bargain for. I wish I had a picture of the 5 pound catfish I caught this spring on my lightweight rig with 4 lb mono and a tiny brass hook on the 1/64 oz jighead. One of the funnest fights I've ever had in any kind of fishing! Some of my friends give me some good-natured ribbing about my penchant for catching the little guys, but I don't think you can get much more exciting than knowing you don't have any power or strength on your side as an obviously big fish starts making that drag on that poor little reel sing!