I don't know if anyone has mentioned this yet but the BOSS system has nothing to do with recoil. Yes you can get one with a muzzle break, but you can get it without as well. So the question you should be asking is should you get a rifle with a muzzle break on it. Yes they are louder, but they also considerably reduce recoil on some rifles. The more recoil, the better the system seems to work.

However the boss system is designed to fine tune the harmonics on your barrel by adjusting the weight on the end of the barrel. This negates having to try several different brands of ammo and often handloading. Since all you are doing is finding a load that best works with your barrel harmonics. With this system you can pick any brand and load you want that fits your needs and tune the barrel to the load, not the other way around. It's sort of like tuning a bow to an arrow vrs buying several different types of arrow or messing with arrow length.

I have a friend that has two of these Boss systems. He swears by them and couldn't be happier. I have also seen the video produced by Browning and was pretty impressed. My buddy said his results were the same.

As far as losing velocity, I doubt you lose much. It becomes a point of diminishing returns after a while so the only way would really know is test one with a compensator and one without it to see what the differences are. Just using a compensator may reduce velocity regardless of barrel length. If you get the version without the recoil reducer it should not be an issue, the barrel length should be the same. I highly doubt the slight difference would effect the bullet trajectory or down range performance any way. This is sort of like arguing about 10 fps on a bow. You will never see the difference any way unless you use a chrono. In the real world you will not not notice at all.

I think brownings are great guns, I wish I could afford one.

Paul