Maybe the Ark. influence is good for Walther.

I have some experience in with really hot 10mm loads on the G20 platform with some special set-up considerations. I've done some naughty things. On video, going frame by frame, I see the forces imparted upon the rubbery frame of the Glock. It soaks up a lot of the forces. Personally, and as a 320 owner myself, I do not see the SIG having the same flexibility and durability as the Glock. Maybe that's just me. Factory 10mm offerings are a bit on the light side anyway, not hot like the original loadings that roughed up early Delta Elites. The SIG does have a normal rifled barrel so you don't need to go out and buy aftermarket like I did on the Glock to shoot cast.

The 10mm 320 is set up on the full size rig, and you can add these weights to the plastic "module" to help ease the pounding on the chassis. Time will tell. The SIG does have a better trigger and ergonomics than my personal G20/21. I'm just not keen right now on rushing into anything. The SIG hammer guns with metal frames, that's another matter.