Well, It is in it's "dying" process. I haven't noticed it slow down much.
The closer the light the tighter the buds. With such a large distance from the bottom, You will want to get light on the lower buds. Right now the plant is working its hardest getting stuff to the top. By cutting away what is ready...it will promote more work to the main cola. but as soon as that main cola is ready. I would cut it off and drop those lights to the base. This why most grow hybrids and indica...short stature and easier to control canopy as well as fast flowering periods. But Sativas are a better buzz for day time smoke. IMHO.
I would pay very close attention to the branches with amber trichs. I would harvest them.
Sorry for so much info. I just like to give you as many options as possible. esp. when its a one plant grow. I tell ya this man. I would love to reveg. that plant and take some clones off that girl there. She def. has keeper traits to her.
BTW what lights do you have...is it ll flos? or is that a hid in the middle?