Just a quick heads up, I had the wiring harness on my Pro snagging in the orbit post assembly, it chewed right through one of the lamp column wires (they were not zip tied together enough on the back corner of the playfield). You may want to take a quick peek just to make sure nothing is binding in the orbit post or shorting out in that area. In my case since the orbit post actually moved the affected wire around every time it popped it was inconsistent at first, then just went out after fully chewing through the wire.