Quote Originally Posted by Tax Esq
Anyone try to mix QF with thier own urine? Since my tests still look close to the cutoff with the faint line, I am thinking about mixing a 1/3 or 1/2 of the sample with quick fix and the other 1/2 with my own urine.
Youre still not understanding whats has been said.

One more time: There is no meaning attributed to the intensity of a line. Assays have no ability to give a quantitative analysis, so therefore to conclude that youre close to the cutoff limit with a faint line would be sheer speculation and erroneously so. Again, even synthetic urines (which contain no drug metabolites at all) can produce a faint line on an assay.
The test result above is a negative, period. Relax.