If ANACS, PCGS and NGC are TPGs, was CAC an FPG as originally founded?
A serious question of terminology:
If ANACS and then PCGS and then NGC, etc., are Third Party Grading Services, or TPGs, was CAC as originally founded a Fourth Party Grading Service, or FPG?
Under its new business model, should it properly be called a TPG?
What about CMQ? Is it an FPG?
I am writing an article about Grading and would appreciate serious input.