The Vias is a good brake and it does work well but the ported brakes are not as effecient as the baffel style brakes that anybody makes. We test a vias and a Badger Thruser bake head to hade on the same gun with the same ammo with the brakes being turned to the biameter of the barrel which was .900" , the badger brake was clearly the winner by vote of 7 people shooting it all said it worked better , and the Badger realy isin't that effecient of a baffel brake not nearly as much as Nate , Kirby or Shawn's
another thing to think about is that if you shoot a vias onn the ground your going to kick up alot of dirt and dust and at high enough speed to make it a safety hazard.
One last thing that is my personal oppinion is that the Vias brake is over priced , its a very simple desgine to make either on manual tools or CNC , hell you could make it in a drill press with an indexing head.
The Vais brake works very well. I had one installed on my 300 RUM. However, if you take shots in the field from the prone position, the Vais will channel the excess gases in all directions - including down. The result is a lot of dirt and debris being blown back up and into the front scope lens. I switched to a defensive edge and the problem disappeared. It works just as well, perhaps even better - and looks great.
The Badger, Holland are effective and it's true about dirt kicking up, especially if the wind is hard in your face. I don't hunt with my brake on, too damn loud!
I also choose the Vias because I must remove the brake to shoot in NRA Long Range matches. Brakes are not allowed. When I screw it back on, I don't have to worry about "timing" as you do with a horizontal brake.
As far as cost, it is relative. It's like, if you can afford a $50,000 truck, why complain about the cost of fuel?
I guess that's why there are a bunch of brakes out there.