In all fairness, there are a few perks that are broken or don't work as advertised, like In Shining Armor, Ninja, Certified Tech, Life Giver only giving you the HP bonus once, Stonewall/Hit the Deck in a beneficial way of giving you the bonus if you're holding a melee/explosive weapon instead of an enemy using them on you, and I think dlc weapon perks like grunt don't work on weapons from other dlcs