I would still like an outsiders opinion if the damage I took was fair for future reference, the more I look at the actual physics of Chobham armour the more convinced I am the rock would have done nothing. The weight of the rock is insignificant compared to the sheer density of the metal it collided with. 

[@Drifting Pollen] If you're not too busy and have any interest in this sort of thing, would you mind giving it an appraisal? Also, I'd rather have this decided fairly rather than Doc feeling like I owe him a favour for his benevolence.