Last year I took mine to an unregistered billy kid, only unregistered because the owner didn't want to keep a male, he was actually from a very good line, kept for mating a few females then sent for meat. While it seemed a good idea at the time, I've thought since if he had been with a CAE positive goat, (owner knew mine weren't tested, so obviously hadn't bothered about others) it could have ruined mine. I got mine tested a few weeks ago, result within a week.