What gas adjustable block do you use?

What gas adjustable block do you use looking for one to go on my 300blk.

Superlative Arms. I have one on a AR10, but not on my .300AAC.

SLR sentry set screw version

have 8 rifles with them, never an issue

2x JP Adjustable, 2xs POF Dicators, 2x Joe bob Adjustables.

the JP's I got with my 2 JP barrel kits and they are great for their tunability

POF's, I got 1 for a steal of a price and put it on my 10.5" build and it runs great. Threw another 1 on my recent 224 Valkyrie build.

The 2 Joe Bob's I got for cheap just to try them. 1 is on my 7.5" and 1 is on my 16". Surprisingly, they both are running great.

Ive used quite a few and the only ones to ever fail or under-perform are the Seekins. Had fantastic luck with Odin and SLR.