I have installed Shaller on all my guitars. But for one set of screw.... the Allen wrench is turning in the air.... which is unfrotunately happening time to time on this product. you have like 10% of chance to get a bad batch let say. I still managed to fix it by scratching completely the black chrome and because I am too lazy to start to complain and send product back considering the effort / cost involved.
Still wanted to post this
Many thanks for the quick response and help. Much appreciated!