Quoted from honkbahh:

I've been told the first LEs are for export.

Quoted from Phbooms:

Drop of super glue on the base of bulb between the metal prongs and let it get tacky before install and use the least amount possible. The metal holder just isnt working on that bulb, im not sure if its the shaker or the magnet or what but no matter what that holder wasnt holding the bulb in.
Put foam anti bounce tape on the ball stop, wrap the diverter with felt tape and turn right flipper power down to 245 should get you close to 90% of the bounce gone.
DID YOU PULL THE BALL GUIDE AROUND THE RIGHT RAMP AREA? This is number one thing to do before even playing a game unless you like chipped playfields.
Also turn the trough VUK down to 176 or whatever the minimum your machine will go and still kick balls out properly. Lets keep these LEs in mint condition.