I have one of those and it seems to work. I have very few rounds through it so far though. What's your experience been?
Does your adjustment feel kind of loose? Mine is very easy to adjust.
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Regards the Superlative, I must be the resident dummy as I can't seem to get the bleed off to work for me. 11.5" BCM barrel/SilencerCo Omega.
Best luck I have had is with the Noveske Switchblocks, but they are a more specific application and don't allow for tuning the gas. After that the JP adjustables work fine for me as well.
Going against the grain to some extent I prefer the clamp on style, and have not witnessed any issues with operational failure of these units. Of course YMMV.