I've got lots of pick marks on my Martin's pickguard, but they are light and buff out. On my Parlor, I do not have have any pick marks at all. Could be related to the size of the guitar as well, the Dread body size moves my arm to a position where my strumming style causes a light impact with the pickguard whilst the smaller-sized Parlor allows better arm positioning.
I've also found as I've improved my playing technique, I hit the pickguard less and less during strumming.
