Here is what a duolock looks like. The minnow rig would be made the same way as CrappiePappy's jig rig like you said with bare hooks instead of jig heads.The duolocks are great for changing out hooks and jig heads and you may want to try using both minnows and jigs on a rig together.

http://www.cabelas.com/product/VMC-D...AP/2074704.uts