I am in the second week of flower and have 2 ladies left. They are stretching and I have limited head room. Do any of you think tying the top branches "slightly" is advisable? I just would like to tie the main branches so they are at a 45*-60* angle or so which would help me to keep the lights further down. I am using 8X 4' T5HO so I have alot of light surface area. Any thoughts? Will the cola only form properly if it is perfectly vert? Thanks.