Whats worse in 12/12, transplanting or going rootbound?

To make a long story short, when i transplanted my girls (using promix bx by the way) for 12/12, they ended up in vegg WAY longer than I had planned(about 6 weeks) and they ended up filling up their pots immensly.



Now these have only been in 12/12 for a week, but the 3 plants that are in the promix bx(crazy root growth) their roots have already all over the sides of the dirt when i pull them out. Yes, lol, i can pull them out already without dirt falling off-the dirt has already taken shape of the pots because of the roots.



My question is , should IU tplant these 3 into larger pots, say 5 gallon? (they r 3.9 gallon now) I know this stresses out the girls BUT im worried about later in the flowering,(these r only 8 week strains, but still..) really worried theyll go rootbound and i dont know whats worse.



Please help!

In a word Yes with mycorrhizae to support rappid root growth won't go into shock leave root ball alone and insert in properly sized pot's water throughly (SLOWLY) and move on wishing you the best!

I'd gently repot. They are still gonna put a growth spurt on and need roots.

Cool,thanks everyone

Your all good for transplanting. 5 gallon buckets would be the best. Make sure to drill plenty of holes in the bottom and a couple around the sides on the bottom. That promix is awesome for root growth, I use the ultimate organic with mycorrhizae and my roots are already filling the 5 gallon pot after only being transplanted for a week and a half. Be very gentle like they said above. If you do it perfect, she'll transition into the new pot without a stutter in growth. Good luck.