Suppressor Choice for GHM9?

So I have my options narrowed down to either the Resilient RS9 (Will add tri-lug) or the RBS SQD. Does anyone have any say on which one to go with? Mainly wanting dB performance on subs but I'd also like gas taming. I don't care about weight or length since I'm not weak.

One one hand: The RS9 is made with SS baffles and rated pretty high on PewScience. HUB compatible as well and designed to help with port pop. Only issue is getting an additional tri-lug down the road once they start selling theirs with the built in gas diffuser.

On the other: B&T has the simplistic tri-lug setup built into the can, reduced back pressure with flow-through type tech and basically aesthetics. Aluminum only, however (If anyone can jump in here about the materials that'd be great, I'm seeing aluminum as the only material in my searching)

I can get either at around the same price so I'm just wondering which route to go with. Also, does the material of the baffles matter between SS and aluminum as well? I know that titanium and SS is sort of trade off between heat and weight but am unsure about aluminum on stuff rated for higher than 22lr.

Thank you.