Recently picked up a 1961 Gottlieb Flying Circus which is missing the entire mechanism that operates the "gate posts" at the top of the boost-a-ball captive ball playfield insert. I have never played nor seen this game in person before.. can anyone tell me what exactly goes under there? Looks like a modified pop bumper assembly with the ring cut off.... The dimensions look the same. Could anyone who owns this game please post a couple of photos (I have the ones from IPDB) was looking for something closer and also from the top. It looks like 2 posts hold 2 of the balls captive at the top while the remaining 3 are in either lane. I know 5 in one lane scores a special. Can anyone also tell me what is supposed to trigger the special lights, or are they on all the time (mine come on from the time you start a game without earning them), and would the game still function OK without it (just going from lane to lane on momentum) or does it require the "stop gap" at the top to boost them around? Not sure exactly how the whole boost-a-ball works or what is supposed to activate it, as I have never seen one before. It has a few other issues but this is the one that's a bit baffling, as it is missing completely. Thanks in advance.

We have come to find out the missing posts were energized to the down position during game play and pop up after game over... they were a cheat deterrent so you couldn't "pre load" the balls to one side before play to get an easy special. I am just leaving them off.... that will never happen to the game here. Thanks, though!