dammm U r quite the kick ass grower.
That looks as if it could be in a professional lab.
When I build something, it's more like this and this is not a joke:
Hey, I use pyrethrium bombs...works well and can be used well into flowering. It's all natural, uses something from Orchids. Then again, I also, dip all my clones into a Neem Oil/Dishsoap mixture before transplanting into flower room. I also spray weekly with same, until 2nd week of flower...Neem Oil is great "preventative" maintenance!
Yea...I have used them as late as week 4 or 5 of flower....
I love B1U grows. Keep on rocken.