Quote Originally Posted by 347SPECTRE View Post
when outside Grit we have access to Blood Weapon, which is way more reliable for MP recovery AND it also boosts damage. Whereas BP gives us MP when hit, and it's also not very much.
That's the problem: You want to avoid Grit as much as possible. And unless BP gives more DPS than BW and nullifies the Grit penalty it will be useless.