Yo,
Plants look great dude, remember back at the beginning when you were worried, ha.
Did you notice the three bud swelling stages?? Once you've got that nailed you'll be able to read them much better during flower and know exactly where you are.
Could easily chop now but if they were mine I'd take them in another week, just depends what high you want really but I've heard great things about these BioDiesels so I'd want mine to destroy me.
How are your others doing??