We have DE brakes from shawn carlock on several of our sporter wieght rifles. It started out as putting one on a sporter wieght 300 rum, so it would be a little more gentle on my wife. now, we are putting them on almost all of our rifles. they work incredibly well, and i would bet you never want to take it off.
the only disadvantage of a brake is the noise, but we always wear ear protection, so that is not an issue. I have fired it twice without ear protection, and it was very loud. I wouldnt recomend doing that on purpose.
shawns number at defensive edge is 208-687-2659, and his website is www.defensiveedge.net