Yeah, I understand that most of the bleach/LC is trucked in and loses some strength. Most stores keep their supply indoors at least, except for one store I ran into that keeps it sitting outside in the "shade". Unfortunately, that store is the only place that sells 12.5% and you return the empty bottles and get new ones.

I'll have to try that testing though, I've just been trying to cut down on all the waste with all the bottles and boxes which is why I switched to LC.