My 1200 Pro has the serial number 0004/1200. I see that there was a 1200 Searambler sold here a while back that also has the serial number 0004/1200, and I'm wondering what that means. Were there 1200 Pros and 1200 Searamblers made? I know serial numbers are randomly generated, but I haven't heard of accidental duplicates. Anyone know the production breakdown of the 1200 series?