TV, my only experience with Estate loads was 2 years ago, in 20 gauge used in a semi-auto. I was tuning up for dove season and I was shooting once a week around lunch time, I was out of shells so I bought some from the club.
Complete crap.
That was what the guy pulling the birds for me said too. I seem to recall he said they were not consistent on the chronograph and had other issues related to quality, but we were talking about 20 gauge. Also, you can get away with a lot when you are shooting single barrel trap guns, O/U's or pumps, as so many trap shooters do. Semi-auto needs better ammo.
One more thing, if you go to the same club consistently, on a busy night, just sit around and watch and listen to the old farts talking. You can learn in a lot in a place like that, even if they do seem up tight.