I was looking at a sneaky pete for sale that was made at some shop in California, don't know the name of maker, but there is a number stamped into the shaft where the pin enters. The same number is stamped into the butt of the cue. I assume it was to keep the right shaft with the right butt, but does anyone possibly know who the maker might be? I know some makers will write in pencil on the bottom of the shaft, like SW. I don't have any photos. Any info would be greatly appreciated.