I am in the same boat as you, but will offer what I've found so far if it helps. I'm going to wait until after shot to see if there is anything new released.
Since you mention the SAKER, it appears to me the SWR Specwar would be worth your consideration, given your stated requirements as it is quieter than the SAKER. SWR generally always do a tremendous job on the level of noise reduction and while I don't know, I would be willing to bet, their can is a tad quieter than the RC which appears is high on your list of considerations. (Basing this on my experience with their excellent Octane 45HD.) Although perhaps not enough for you to notice while your ears are ringing from the super sonic crack.
The full size SWR can is 1.1" shorter and the same weight as the RC. Conveniently, or not, SF doesn't list db level noise reduction, that I've found, nor do they specify the materials used for the baffle stack, where SWR does list them.
I'm finding muzzle device compatibility / quality is a consideration, as I don't want a garbage flash suppressor on my rifle(s) when I'm not shooting suppressed and I'd like options should I want to shoot it on other platforms. I really wish BE Meyers would sell their four prong FH with different suppressor mounting options to the public. The AAC stuff is further down my list to investigate......but not out of the running at this point in my decision making process.
You appear to have a varied arsenal of rifles and surefire has an impressive array of options for compatible flash hiders for a lot of different styles of rifles (and threads) if that matters to you at all.
Not sure if this helps you much or not........
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