BCN Power Plant Autoflower grow

I have moved the plant indoors because of the bad weather lately so it can finish under lighs and is in an environment I can control. She's now in week 1.5 of flushing so expecting to harvest soon. One thing I have noticed is that she's foxtailing quite heavily and I don't really know if that's genetics or just stress from flushing or temperature changes etc. I also find it hard to estimate when exactly she's ready to harvest because she is quite old, though she still has quite a few white hairs (also from the recently developed foxtails) and barely has any brown trichomes on any of the buds.