From the looks of things at this point I think that the appropriate mode of action would be to start tying down the taller tops. Looks like you may have a little longer to go than 3.5 weeks but Im not there and pictures are deceiving.
Yeah, I'm only 6 inches from the 250w HPS. I'll start tying down right away.
These tops look nothing like my last grow at 7 weeks(Nirvana Bubbleicious).
It looks to me there might be 6 weeks left. But, this is my first "Auto" grow.
Thanks Jimmy!