Ah, cool.
Found the original was done about 2005 for IPSC world shoot in Ecuador.
Reason was IPSC had a rule against full length dust covers on production guns and hadn’t made a decision on whether it would be allowed.
Milan Trkulja , who was a player in CZ at the time had the SP01 Shadow dust over shortened 10mm and renamed 85 Combat II
Adam Tyc took the 2005 IPSC World Shoot title in the Production Division.
Have only seen photos of two actual guns, but supposed only a few in total were made, as IPSC decided to allow the SP01/SP01 Shadow.