R9-12 should be producing 2.3745 BTC at the current difficulty rating.
As of this writing, the 24 BTC for R9-12 is 1.67354500. The next projected difficulty is showing as 889,752,235 and if R9-12 were at 3.34GH/s this would be 1.8879 BTC for a 24 hour period.
I do appreciate ALL THE HARD WORK Bob has put into getting R9-12 up and running, but if this equipment is not going to meet the 3.34GH/s, I say we put it to a GB vote and move forward.