It’s a great design. Like a compact crawler harness. I couldn’t bring myself to spend that kind of money so I made my own out of some old jig heads, beads, smile blades, and a slow death hook. I troll them at 1-1.4mph and have had good success with them.
I’ve done something like this…tied a crawler harness and cast it. Works great in low flow on the river. If I need weight, either run a short dropper like a 3 way or, add a bullet weight above the harness. I mess around with the blade types and the beads but I’m not sure how much that matters.
We cast Dubuques quite a bit in the summer.