Autoplunge inconsistency FIX:
I found that the autoplunge mechanism, the actual piece that hits the ball was rubbing on the right side stainless steel rail. You could hear it grinding when manually pushing the solenoid in and out. The problem is the way they mounted the bubble level. Seems like a careless mistake. They let the stainless steel rail slide out into the shooter lane too far and secured it with the bubble level screws in that "pushed out" position, hence the launch mechanism rubbing on it. Remove the level, drill a new screw to hold the rail. Done. Debating how or whether to reinstall the bubble level at all.