The next approach tried using a balance as illustrated below.

Attempt using Balance

This approach was a success for two reasons.

The first reason is that when voltage was applied, the balance was upset, demonstrating the some form of propulsion was happening.

The second reason this was a success was that the direction of movement of the device was always in the direction of the dome. In the diagram above, the dome is above the copper disk so the device went up and of course the counterweight went down. When the device was turned upside down so that it was hanging from the copper disk and the voltage was applied, the device went down and the counterweight went up. See the pictures below. Of just as much importance, this was true irrespective of the polarity. It did not matter if positive was on the dome or on the copper disk, it always moved in the direction of the dome.

Rightside up device - Before

Rightside up device - After

Upside down device - Before

Upside down device - After