I have a saint victor, love the gun, don't like the muzzle device. Wonder if the blast diverter would work? Don't want to spend the money or the long waiting period to get a suppressor
Yes and no -
As the variety of replies show, this isn't a one-dimensional, quick-and-easy answer.
Various blast-mitigation devices work, but just as different brakes can work differently, so can different blast-mitigation devices.
The VG6-CAGE, for example, redirects much of the blast/concussion - and thus noise - "around" the shooter: however, if the shooter is standing in an environment that doesn't really allow that energy to dissipate (such as with an indoor shooting range's stalls), it'll get "reflected" back at him/her to some degree.
"Blast forwarding" devices such as the Surefire Warden or the various iterations of Griffin Armament's "blast shields," the energy is contained and "forwarded" front-of-the-shooter. But again, if you're in a more enclosed or otherwise reflective environment (think a small room, filled with harder furniture), it's not going to work nearly as well as it would if you were on an open flat-range, 25+ yards from the target and even further from the backstop.
So as with virtually everything else, the question becomes "what is your goal?"
If you're looking to make the gun more comfortable in CQB/shoot-house classes, the hassle, delay, and cost -as well as the gas tradeoff- of going up to a suppressor may really be worth it.
But if you're looking to make sharing the line (especially if it's covered or even indoor) more enjoyable for you and your fellow shooters, then this may just be the ticket.