Actually Deb, UKC only recognises Curto papers because Of Espo and Tom Pickel or East Coast PC being involved with the NPPCC at the time they were courting the UKC for recognition. The UKC standard is the CEPRC (CEDC) standard written by the Royal Sociedad de Canina Espanol in 1989 (NOT by Curto), with a few minor changes in made to fit common SS dog faults (such as the pump handle tail). I think Curto did start his own registry for his paperwork after FCI recognition though.