Quoted from Metzu:I didnt get the spitting out two balls at the same time part
He is referencing the castle lock. It is a single pole that drops for brief periods of time to release one ball at a time. If it is out of adjustment or the mechanism is sticking, more than one ball will release when only one should be released.
Dont let the discussion of 5v reset issues from the main BSD thread have you gunshy. ANY B/W pin from 1992 to 1998 can suffer from this at any time if the game has not been bullet proofed.
Dont be scared to buy it. This game has been thoroughly documented in the main thread as well as various threads all over Pinside. Nearly any issue can be addressed by someone on the forums.
This was by far the game I cut my teeth with when learning pinball repair and diagnostics, although my TAF came in a close 2nd place. We can help you; be prepared to learn a lot as some of the issues can seem a bit daunting to diagnose at first. Read, read, read the main thread. Lors of information and knowledge there.