There is a reason that most serious AR people don't bother posting much in the black and green rifle section anymore. This thread is a good example of why and it's a shame really.
When I asked the OP how NEA explained the burst fire problem, he said:
Anyone who knows ARs and is thinking clearly can read between the lines...NEA is trying to isolate the burst firing issue and the first thing ANY AR manufacturer is going to suggest is putting the trigger back to stock to see if the issue continues. Maybe the OP installed the aftermarket trigger incorrectly, maybe he got a bad trigger, maybe his Geissele came from some dude at a gunshow who did a little stoning work on it? Who knows? The point is, the manufacturer has no idea and the first logical step in determining what is wrong is to suggest it be put back to stock to see if the issue continues or not.
But instead of rational thought we get the predictable dogpile with people practically tripping over each other to get in on the fun. When people are so eager to jump on the band wagon and not use their heads we get the following: