Hey man, This is fairly normal, some parts of your plants are finishing themselves off and your bud is still outputting those white hairs to show you its still got some kick in it. You can try giving it 11 or 10 hours of light per day now to stimulate itself to use all its reserves and finish itself off(cause it thinks its gonna die in the coming weeks).
Thats my 2 cents.
(What I would do is just give it as much time as you can let yourself hold out on. Unless of course you're checking trichomes with a zoom, and they are all pretty much amber, than you can chop now)