I got an IMDN premium this week and I seem to have most of the problems in this thread.
My sarcophagus captive ball does not register hits, unless the ball is pulled forwards, towards the front of cabinet. Sometimes side-hits will trigger it, but for the most part, it just bounces balls off to no affect, which makes one of the main parts of the game unobtainable. I've seen some posts about people reversing the switch and messing with the ball, but I wanted to check if anybody has put together a guide for fixing this sort of issue, before I just try all the things people have suggested.
The orb captive ball is also very hard to trigger, but it's way easier to trigger in the switch test mode than the sarcophagus one.