Do you own a white dog or a white cat? I can see white hairs in the buds (not pistils), or maybe its just from clothing or your own hair if its white. Anyway, new growth might always be coming out, specially if you dont lower light intensity towards the end of the grow. That said 60 days is pretty standard, youre not gonna over ripe it for waiting a few more days if that gives you peace of mind. The old pistils are all orange and tucked in the bud, you have amber already and most milky, your call. Same I said in the other post, if you wait more youre gonna get more THC but also more CBN. Every orange trichome goes from THC to CBN which is pretty similar to CBD in how affects you, so it will definetely lose a bit of head high but it will be overall more potent.