In regards to wrist straps, I'm beginning to think forearms/grip will always be behind potential back power. Seems like my grip will never catch up with the weight I want to pull with my back. Even when I use wrist straps, I still get crazy burn in my forearms, but atleast I can pull the weight I want and work my back much better than without em.
Unless your gonna compete in powerlifting, I don't see the downside to using wriststraps when needed for heavyweight.