You'll find that at times live bait will produce more fish than jigs or jigs tipped with minnows. I've used rigs like the one youre looking at and the minnows on hooks will tangle using that rig. Also, as SH mentioned, if youre fishing water where there's a possibility of brush/stumps you'll hang ALOT more. In those situations you can change your rigging to Carolina (or Ky.) style with the weight on the bottom and use the weight like a "feeler". Usually when a pole gradually pulls down (and the line's going backwards) your weight is over brush. Usually just lifting the pole straightens it out. If I were to rig leaders and jigs off of swivels or three-ways, I'd use a lighter leader line in case of hanging you'll break that leader and hopefully only loose one jig or hook at a time. Really...there's no scientific way of riggings. There are no rights and wrongs. It's all about experience and you can get that only from being out there trying. The benefits of a site like we have here helps eliminate what has worked and hasnt worked for people with a bit of experience, but still try different rigs and setups until you find what you like fishing. Once you get your poles and holders set up youre ready to get out there and get started. The beauty of spider rigging is you can fish 3' deep or 30' deep. Wherever you see the fish holding is where you fish your hooks. By spider rigging you keep your hooks right in their faces until they decide to do one of two things....either take the bait or go somewhere else.