I use this when fishing for Aku (skip jack tuna). For many fish a bait (fly, small squid mold, etc) when repeatedly jerked while trolling, catches more then if trolled at a steady speed.
I rigged a line from the stbd Mirage Drive pedal through a guide on a bamboo pole (bungied to rear yaku on my AI) , and attached a clothespin release. Let your lure out to 100 feet, or whatever you need to not scare off targeted fish. Then attach your rod line to clothespin. ( Stretch the bungie a bit if you need to pull the bamboo pole in to do this.)
Although I didn't catch the complete extremity of motion, compare the two photos and you will note the clothes pin has moved. Typical travel is around a foot.
This leaves your hands free for other things while your lure is imparted a better motion for inducing strikes.
It works well with a Sidekick yaku also, but you probably don't even need an ama rig to utilize the inherent motion of the Mirage drive.