This is a compelling discussion point. I believe there was some overlap as the very first ever 952 pistols, the no-dash model made to 400 units was a 2000 year pistol, exclusive to Bangers Distributors. The very last of the 952-2 pistols ran as late as maybe 2010, these had an odd serial prefix that was UBZ, iirc, and not the DAB prefix of the bulk of the 952-2 guns.
Where inside that space were the PPC-9's made? I'm not sure, but they were definitely made in the mid-1990's and perhaps later.
I saw a 5'' PPC 9 with the odd serial number UBZ57XX that had a test fired casing dated 6-22-2009. I was curious so I asked Roy Jinks about it and he said it showed a shipped date of Aug-2009 on the books. I didn't think they were still making them that late and the odd serial number prefix confused me cause all the ones I saw started with PPCXXXX