OK I'm try to sell my 300 ultra mag and get a .308 weather warrior. there are 3 models I'm looking at fcss, fhss, or fhsak. the fhsak has a adjustable muzzle break on it. on the savage web page it says it more expensive than the other 2 by about $60 but when i look on line i can find it cheaper than the other 2. this got me thinking. does the muzzle break affect accuracy or has anyone read a review giving any info about it