FYI - Spider Rigging in WI
Took a look at the WI regulations and contacted the DNR regarding spider rigging. There is a 3 hook limit per person in WI - each item capable of catching fish is counted as 1. So you can run 3 crank baits, or 3 minnows, or 3 jigs per person. You can run 2 on one rod and 1 on the other, or run 1 minnow on 3 different rods, just don't go above 3 in total. It will save you fines and minnows.
Also, trolling is prohibited statewide, unless permitted - best to check the DNR regulations before you start. Drifting with the wind is not considered trolling. You can position over a brush pile with the motor, but not troll past it.
My county is an exception, I can troll countywide except on 3 lakes. Also, to get more baits in the water, I can bring a kid along :) Now to build some rod holders for the next year.