For your specs I’d go EdGi. If you meant porting, I’m pretty sure it’s a myth. I don’t believe anything is confirmed as far as benefits. BUT you can get a 360mm ported edgi barrel in stainless if you wish. HOWEVER, it will be pricey. Also, EdGi’s ports start approximately 45mm from the barrels end. So that would essentially make the barrel 45mm shorter volume wise. You will lower your fps with a ported barrel. For a “volume matched” ported barrel in a vsr you’d want 370ish + 45mmish.