hard to say, when i was expiramenting with home test prior to my whiz quiz, i was getting the very faint line prior to diluting by drinking a bunch of water beforehand. which, according to the instructions was still to be interpreted as a negative test.

however, the home test that i took after diluting definitely had a more distinct test line so i know that the more distinct the line, the further away from the 50ng/ml cutoff you are.

when is your 'real' test?