I’m certainly no suppressor expert, but I’ve got a SOCOM II RC2 7.62 can & I’ve been nothing short of pleased w/ it. I’m running it on a custom bolt gun & the gun has shot lights out. Absolutely zero issues.
I also run it on a M4 as well. It shoots very well in that configuration also. Obviously I didn’t get it to shoot super tight groups w/ this set-up, but because it’ll stand ass loads of abuse & keep on ticking w/ a high round count.
The QD mount has been problem free. I lube the muzzle brake a bit before installing or I take it off after a little while just to keep the carbon from building up. I also scrub the inside of the can after each use.
Each can is a series of trade-offs. I don’t think any can does everything “the best.” For my used, the SF can has done me right.