I have the "Answer System" installed on 2 guns: a 300 Win Mag, and a .338 Win Mag. Their particular muzzle brake is very effective, and the quality of their work is second to none.
HOWEVER, you should know that their muzzle brake is probably one of the loudest out there. I once forgot to put on my ear muffs when I went hunting, and I dang near went deaf after 3 shots at a big hog. After that, I decided that I would learn to be a man and take the recoil rather than lose my hearing. I'm telling you....my ears were ringing for over 12 hours!
I know what you are thinking...why didn't I use my ear muffs? Well, it's simple, I forget them at camp. The next day they were accidentally in my dad's bag. Well, guess what? Although I saw a nice big doe, I decided that, since I didn't have my ear muffs, I wasn't going to take ANY shots, so I let the deer go. I wasn't about to shoot that gun again without hearing protection!!!!!
Zachary