It seems I've got a small problem with the original cases in my Capo RR.
Every time i put them on or take them off I manage to scratch the metal frames they attach to


Now I don't know if I am doing something wrong or not, but I think it's a design fault, because there are two sharp corners in the side boxes, that scratch the frame.
I've tried to file them a bit to make them smoother but it's not that easy.
I've tried to unscrew the whole thing from the back but again I didn't do any better

At the moment I'm trying to use them with some cloth tape on the back of the side cases....
I don't know if it works yet or not.
So is there anyone else with a similar problem (ALEX LI I think, he's got an RR-but he doesn't visit the English forum)?
Or any other ideas?
Any help would be appreciated
