Has anybody used these before? These were the only ones available without driving 30 minutes off post but they seem awful. The paper inside says to wait at least 3 minutes but no more than 10. If I check within that time frame there isn't any line at all but then I don't know if I can trust the line that shows up after the 10 minutes.

Do I have a bad box or are these just bad anyways? Thankfully I have better ones coming tomorrow

**update just in case anyone searches this in the future. I got my reliable brand and compared them for a couple days and these are ok but some days the line didn't show up properly until closer to the 15 minute mark, which is technically past when it should be read. Some days it worked fine and same as my other brand but other days it was extra slow for whatever reason, but did always come out with the same line color. Overall I might get them again if I really truly need to but would rather not.