Couple things I failed to mention that's important about spider rigging. If you are not really familiar with the water you are fishing, it really helps to idle over the area you plan to fish watching your locator before fishing. This will help you identify what depth the fish are holding and locate structure in the area such as stumps, brushpiles etc. Not a lot of fun hanging up 4 or 5 rods with double hooks in a brush pile at the same time plus at times you may hold on a brush pile and catch several fish. I think the greatest advantage of spider rigging is when you drop 10 to 12 jigs tipped with shiners in front of the fish, you will get a reaction bite whether they are feeding or not. Another good way to catch a lot of crappie if you are not set up to spider rig is drift fishing double minnow rigs with slip corks. This works really well on flats and coves where the fish are scattered. Doesn't take any special equipment just rod holders and 4 or 5 rods. Set your rods at different distance out the side of the boat and the corks at different depths. Once you determine the depth the fish are holding, you can set all the poles that depth. We have caught limits of fish drifting with these rigs.