I inadvertently let the tent get to 93% humidity last night. That's what happens when the fan is activated by temperature and there's no integrated humidity sensor. One of the buds on my Purple Canyon had mold (first time ever!). So I had to toss that bud, luckily it was only a few grams. It's only on day 54 and is getting really close to the harvest window, but I couldn't bring myself to chop it yet. I'll keep a really close eye on it and keep the humidity low for a few days.
I already feel like Purple Canyon is better when harvested a little early, because the sister was better when I smoked a test bud at around day 65 than after harvest at day 72, but that could be a tolerance thing and I'm not sure. Who really knows? I mean really -- which of you growers know? Inquiring minds and all that.