You are right about everyone rigging differently it all depends on the crappie, went to Weiss a couple years ago and found I had too run .8 mph with 1 jiffy jig about a 18" deep with half ounce weight above the jig this was in the spring in about 3 feet of water. I run my rod tips about 10" off the water with a 1/2 oz. Weight on the bottom and a jig or hook about 10" above that than 8" above that another jig or hook you don't want your line to get more than a 45 degree angle you can slow down or add more weight depending on the fish. Also the advantage to spider rigging is watch your electronics for ledges or brush piles where you may want to fish these slowly or set on them. The bad thing is usually rough water it is hard to catch fish when your rod tips are in the water than 3' out of the water use wind socks or other ways to slow you down and drift with the wind. there are a lot of variations on spider rigging use different technics until you find what works best for you at that time of year. Good luck