I don't agree with your interpretation of your vs the claw spanner. I'd see the difference as being the personal vs the impersonal. Run your claw suggests that the woman herself is hurting him whether willfully or not. The claw suggests something more like he is hurting but it's not necessarily her fault. Your claw does more sexually though whether as a corruption of a caress or to suggest she uses her nails a bit in the sack.