I have sent in the tbg and it came back with the same numbered parts. I have two ejector numbers and have swapped parts for more than three months but haven't found the right combo yet..
I love the 124gr. so thats what I shoot at the range but as needed to test I have tried 5 commercial loads but, I would rather not buy 200-250 rounds a week for my wife to shoot, I have a gen1 that will shoot ANYTHING I feed it... I will try the HRED (brownells??) and keep dreaming of a reliable gen4...