Myself and 2 other friends have watched the second growth spurt happen with our GTs. No hermies, quite a few strains have a second growth spurt. You will notice that the new gowth's hairs will turn red and trichs cloud quickly, in about a week. I don't have my notes in front of me, but mine finished around 75 days and definitely had the second growth spurt.
I would give her a week.
cheers
os