If you're going to keep it in that cup, I'd flower now. That btch is going to streeetch. If you're going to pot up (which is what i would do), pot up then switch to flower in about two- three weeks.
I am but a humble man offering my humble opinion.
Cut back on the N a little, Leaves are dark green and you got some burn at the tips. Not good when your tip burns . Could be causing what looks like foxtailing to me .
Waiting for more knowledgeable members to chime in .
I always use my cack to poke holes in the soil for better aeration... Guessing I'm the only one? I go in dry, btw. Fertilize and aerate while getting off. Can't beat it (no pun intended)
Anyway, got about a pound using that method and trichs upon trichs
Don't water at the base. Go out a little further, towards the edge of the pot but not at the edge, so the roots have to search . Big ass pot for a little plant
Does look good though, broham . Keep doing what you're doing. Hands on experience is probably the best learning tool.
Forget what i said about the mountain dew . or not .