Re: Flash Hider, Muzzle Brake I want your opinion
What kind of advice are you asking for, since it's on the way?
If you are average Joe, just use it and be happy
I ran an FSC30 on a 6.8 and had zero issues as the shooter, but it does blow back at the spectators. Not horribly, however, so I was pretty happy with it. Good muzzle control, not loud, really, and I assume the flash hiding abilities are noticeably superior to a tank brake.
If you are loaded, I recommend buying a Battle Comp, and a KAC triple tap, swap all 3 back and forth, and running the one you like better.
If you have no money, I recommend denying shipment and using your A2: the best muzzle device for the money
In any case, be sure to post your choices and results.
ETA: sweetbeard below has the obvious correct choice, if money is no object!