I got mine in June of last year (Gen 2?), and I am on my second case of 750 rounds of Hirtinburger.
I did have some FTF in the first 200 rounds, and then after that, no issues at all.
Last week I did install a Geissele Super Semi-Auto Enhanced Trigger (SSA-E) I picked up here from a member, and I had the rifle up at the range yesterday, again no issues at 150 rounds.
I did find that it really helped to keep the BCG really wet with full synthetic oil during the break-in period, now it just runs.
I thought I was shooting well until these two showed up.
They kept putting bullets in the same holes... so I just gave up!