anyone use a D.U.I. tri power ignition?

Not exactly! If the instructions say you don't need it you can leave there un connected or take it, your choice. The reason for the jumper wire is if you look at the two connectors that are on the ballast they have multiple wires attached to them. One one side there should be two blues and the other side a blue and brown. The ignition switch in the run position has switches battery voltage to the side with the two blue wires, in a mopar ignition that voltage would go through the ballast and would provide a lower voltage at the + side of the coil for when the engine is running. When the key is in the start position battery voltage is switced to the other side (brown wire) and provides full battery voltage to the + of the coil.

Since the DUI coil does not need a reduced voltage during run to keep it from over heating you do not need the ballast resistor to protect it. But if you only hook up to one side you will have power either in the start or run positions which will result in the car either starting and dieing as as soon as you let go of the key or not starting because there is no power in the start position. Hence disconnect the two wires from the ballast, take a piece of wire crimp on some blade terminals and plug and end into each connector.