Quickdraw IS, Perfect Balance, Extended Mag, Counterbalance. Extremeophile is hardly affected by Counterbalance's initial muzzle flip it is supremely stable with these two stability perks. Add to that when an auto is very, very stable it doesn't need aim assist perks like Hidden Hand because you are easily tracing your target. Also helping is Extremeophile's very fast reload is even faster from QuickDraw IS and that sight adds even MORE stability. Finally using a high agility with Extended Mag you have 45 rounds to leave your strafing opponent reloading and wondering when the deluge of super accurate bullets will ever end or to get multi-kills on less agile opponents. So stable it's relaxing to shoot. Highly recommended.

It's a good weapon

With stability perks its a solid gun. Any combination of Perfect balance, counter balance, rodeo and persistence will work well for PvP. PvE, You're better off with scouts and pulse

It's more fun to just test out options than to follow someone's advice whom you might disagree with. It extends the playing time!