Hi mate. It's not the hairs you wanna be looking at,it's the trichomes. These are the tiny little mushroom looking things on the leaves. When they are clear like that, the plant is not ready. These will start to turn amber over the coming weeks. Keep a close eye (wicked shot by the way), and when you see around 70% of them an amber colour, this is the ideal time to harvest. The plant has reached its peak potency at this point and left any longer, potency will start to diminish. Hope this helps.