Braddoc said:
The new True Grit is good.
Keeping in mind, Chaos is POWERFUL, CORRUPTING AND EVIL.
So is True grit overpowered? Hell no!
Your average human who's touched by chaos and gets changed, ends up harder than your loyal Imperium soldier, as he lacks the dark blessing of chaos.
I'm pretty sure the rules change in BC isn't meant to be Chaos-specific. As in, your True Grit isn't better because you're a Heretic, it's better because the rules have changed.