Nice job. Looking very frosty! Are you sure you aren't sand bagging us, and this is actually your 5th or 6th year of growing? My first grow yielded some decent bud, but it was the plant's miraculous ability to survive abuse, that got me there Yours are thriving!
Are you planning to hit them with a bloom booster of any kind? I have had visible, repeatable results with powdered Kool Bloom, at 1/4 tsp per gallon. I hit them at week 5-6, and then discontinue.
I reread your thread, and I'm still not sure what you are growing in?? Is that coco drain to waste, hempy buckets, or??
Whatever the system ,it sure seems to work. I look forward to your updates, as I just picked up a 5x5 tent, and I have 3 clones ready to go in, that have been languishing in my veg cab for a month. This thread is excellent motivation!
Regards
well done opek, let's know your dry weight, goodluck