Dobemom2b

I know that the vwd test via elisa is seen as outdated since the dna test came along. I have read how there is a overlap of results with many thought to be carriers turning out to be affected when tested via dna.

My question is how reliable is a test which shows a clear result done through Cornell University. Would parents reported clear by them be produce pups clear when later tested by vetgen? How reliable is the test when it shows a clear result?