This is probably a very stupid question, but here goes. Can a carrier dog be more likely to produce a carrier than another carrier dog? I know of a couple of carriers that seem to produce a high rate of carriers, when the statistics say it should be 50/50. Also, I know of another that has not produce even one carrier in multiple tested dogs. Is this just luck?

YUP its luck!

Do you know if these dogs were bred to a Normal clear female or just an untested girl. My B boy when bred to A girls seem to have alot of clears. To my surprise. But like they say might just be the ones we picked to keep, lately, luck.

I am talking about carrier dogs bred to normal/clear dogs.

You just are lucky. So far.

You don't know if the one that was kept was the only A in the litter, and the balance was B's. Pet owners generally don't test :)