Wish I could help but I rarely get defs. It does look to me like it is drawing the stored energy from the fan leaves, and the budsites around the yellowing seem to be filling out. Veg nutes sound good in theory, but perhaps those will be colas/nugs that will be done earlier than the rest of the plant?
Only 17 Days till you have a 70 Day plant, not rare for autos to be finnishing up around then(not knowing the strain though)
Last 2 pics look quite filled out:thumbs: but that third isn't nearly done:karma Cloud:
EDIT: Just saw KOs message, good info there.
Hey buddy, Hazey did mention something about the plant maturing before it's life cycle is over due to keeping an auto on veg nutes for longer than "needed". I was thinking maybe that's what's happening now, it started with all of the eldest fan leaves and ones with minimal light in comparison to the top bud sites. I hoping she will pick up in a few days with the added N but her bud sites don't seem affected in the slightest

Day 57 and there are hairs browning up which isn't too shabby at all for me. Next week she will have a rest week with lower EC then one more week to cleanse/flush with just water then chop at approx 80 days - providing all goes smooth. If I can get 100g in less than 90 days from this girl I'm singing and dancing