I do wonder if the BP breeders sell individuals with breeding clauses in a sales agreement. The clause could be a reduced price if future breeding will be free or reduced stud fees. Do breeders allow their males to breed with other collections for a stud fee? Does anybody lease a female for breeding?
This may be for the more elite breeders but have sales ever had a breeding restriction on them? It may not be a complete ban but perhaps somebody buys an exceptional female and the original owner/seller may have a clause that says you may only breed to a certain male/morph for a pre-determined number of clutches.