Any fails with Quick fix 4.0 or 5.7?

[funkyskunk]

Besides the temp being wrong?

[phattyt007]

From all that I've read there has been no reported fails, outside of the lone thread on these forums entitled 'Quick Fix Warning'. From everything that I've seen (I've never actually used it, although I just purchased it as a precautionary measure), including personal testimonials from other cannabis forum users, you should be golden assuming that you can nail the temperature.

[esh147]

There is my experience, and anothers who mirrors mine perfectly found here:
quick fix.. uric acid? NOT HUMAN? - Marijuana.com (http://www.marijuana.com/urine-testing/120776-quick-fix-uric-acid-not-human.html)