I've been destroying the perch on dropper rigs. Here's what you need:
Medium size Frosty spoon with treble hook removed; leave the O-ring attached to the Frosty soon.
Tie a piece of 4 or 6 lb mono onto the Frosty spoon o ring (where you removed the treble)
Tie the other end of the mono onto a Lindy Genz Worm (white glow and blue Genz worm has been slaying for me)
VERY IMPORTANT: the mono between the Frost and Genz Worm should be no longer than 2 1/2" long.....if longer, you will tangle when jigging.
When fishing, make sure the Genz Worm is hanging horizontally and tip it with 3 maggots.
The concept of a dropper rig is you have a larger profile spoon which is highly visible to fish from a longer distance away. The fish then comes in and sees the larger Frosty, but then zones in on the smaller Genz Worm which has a much smaller profile. Especially when the bite is slow and fish are finicky, this dropper rig can be deadly. I've ices more perch with this rig than any other jigs / dropper rigs I have used.
Try experimenting. Trial and error is how I ultimately narrowed in on this rig.