I will hope for the best for you in regards to that. Its worth the extra step though, a once of prevention is worth a pound of cure! I know, I'm a Koivet Mentor and just took a wet lab last Friday with Doc Johnson himself.
I've a microscope due in tomorrow and my two newbies are not going in the main for 6 weeks and they will get two scrapes and scopes done before hand.
Its hard to wait though!

I wanna see them swimmin with my other koi kids!