Looks like I am in the same situation as you guys. And levity, burnt toast is right, if you are consistently seeing a line there, then you will pass the lab test. I actually used that exact same test today out of curiosity and failed, but I read in the brochure in there that the line being faint only means that its diluted, but its still a negative.

I wish the both of you best of luck and be sure to post your results!