I trust ICG not to slab cleaned or unoriginal coins, but what looks like area-denial bombing damage on the obverse keeps me from any closer than two grades lower than whats indicated on the slab. Break-even at best.
I think that what is percieved as damage on the reverse is just an aspect of the photo editor. I have edited photos that emphisised minute marks; making them look like the moon. When in fact they are barely noticible in hand.