Quoted from Rat:
Perhaps yours is effed up if it doesn't do it or you are a really poor shot?
While we are on the subject I find that about 1 in 20 castle lock shots doesn't register. I have checked the switch and it seems good so I'm guessing that the ball must bounce over it?
Same happens on my left inlane off the catapult wire form. I can't notice a bounce and I have tried adjustments, as it's quite infrequent I have given up for now.
I have the same issue with the castle lock shot that does not Register, no idea why and not too important to investigate further.
Regarding the castle destroy by lock shot: as stated above: the ipad version on pinball arcade does the same: shooting the lock shortly after opening the gate destroys the castle. Therefore seems to be normal rulesheet and no error.