Welcome to the LRH forum,
S1's brake has an oddball thread and you would need to send him your rifle for him to install, if I remember correctly.
STL Shooter and Len have both shot the 30 Wolf with them and they might give a comparison to the Vias etc.
Darryl C. has used both the Vias and KDF brakes and says one is louder, and the other is just a bit more effective, I can't remember which one was which though.
I've shot my brothers 338/378wby with a Holland (3 side slots) brake found in Brownells, it is super effective and doesn't dirrect gas downward to blow up dirt when shooting off a bipod either.
I don't have any on my rifles, but the one on my Savage striker if effective, not to the extent that the Holland is though.