The last ten percent of a taper takes as long as the first ninety. Nobody says so until you are in it.

Three questions kill most of the confidence in a thread like this: sample size, blinding, who paid.

Function over score.

Daylight, no flash.

If it came with a repeat slip, the slip beats every database. Not on a reagent test but the pattern is familiar.

Sleep first. Bad night, bad day, more symptoms. Fix that before changing anything else.

My rule, after years of this: if it cannot survive being written down with the numbers attached, it is marketing.