Possible foxtails from top of tallest colas

i wouldn't have typed exactly what the previous two answers said, if i had seen them :P sorry.

I would guage ripeness on the non-foxtail growth is all... could be light, could be heat, could be genetics.. as long as it isn't too bad or weird-looking, usually just means a few extra grams at harvest.

Hello It almost looks like its trying to reveg...with the lights being only 8+ inches away that may be what's causing the stress on top. If the buds look mature everywhere else but at the tips then I think you'll want to judge harvesting based on the trichromes on the sides.