Thanks, I did this a few years ago, time, an time again because I always forgot to to do something, once it was for to put the plastic back that covers one of the pops that sit just under the playfield an don't forget to change the the bulbs or put leds in the inserts underneath so you don't have to change them later down the track, I just remember doing it over an over till I finally got it right, thanks for doing this so it makes it easier for the person.

Yeah still happens occasionally on mine, always have to keep a spare ball in the coin box to throw up the playfield whenever that happens, it's ver annoying.

Yeah I think so, but grab some 555's just incase u would hate to go through all that trouble an not be prepared, u can always use them somewhere else if need be.