Is she being LATE?

I see you're stripping that's good. She looks good. Maybe a little behind. But typically barneys autos are slow to move through pre flower but are stickler more so than other breeders for when they're autos will be done. You'll see she'll start to push real fast for you soon. She is a big girl. As said below, defol is a no no in this phase. And with your amount of space. LST and good practices of tucking leafs in-behind buds as opposed to taken any with autos I've learnt if you've the room. And the patience, left be with good lst, you'll get a much smoother grow and less chance of foxtailing, no defol or lil, less stress, less chances of things going wrong. Good Growing