Quoted from Roo:Yeah that letter from Gary is really unclear on that to me. For what it's woth, I just got an ACDC premium from Game Exchange and its manufacture date is Feb 28. Not sure if that means they just had a bunch in their warehouse, or Stern hasnt run any in awhile.
My metallica premium has a born on date of Aug.09,2013, I just got it July 2, 2014. I asked distributor, and he said he had several Metallicas come in resently that were made in the month of August 2013. I guess it don't matter, check serial number on Stern website and it does have the upgraded magnet board and the renforce drop target mech.