Using a high rpm lmg ( MG5 or the BA ) would be best to use a mod or two with stability. I have two mods that have stability AND crit damage so that my initial pull on the trigger doesn't punch holes in the air as the lmg will do until it levels out. In PvP that will matter a lot. I happen to run somewhere in between 29%-37% and you can notice the difference quickly. That's just my preference.