This reminds me of the scene at the end of The Good, The Bad, and the Ugly with the three guys (KnC as Clint Eastwood, HashFast as Eli Wallach, and Cointerra as Lee Van Cleef) in the graveyard for the gun fight.  *

Just announce the specs of the feckin' chip.  And this means you, too, Other Guys.  You either know the specs now, or you don't.  If everybody offers refunds (and anyone who doesn't is Toast) there's no real advantage here.  All that happens is it gives people more time to make fun of you.

* No value judgments in making these firm-to-character associations.  I thought they were all wonderful characters, although I wouldn't want my daughter dating any one of them.