lol yea .. well I would for sure advice you to make a repot a week before flowering .. specialy if it allready is rootbound .. as the two fist weeks of flowering they stretch alot .. they will need room .. you can easily loose yild if you have a rootbound plant in flowering .. and you dont want to stress them in flowering .. so do it a week before so it have time to find its feet ..
of do as I and think you dont need to and have to do this 2 weeks in:
had to cut the bottom out so I did`t stres it to much .. btw thats a 26L pot = 7 gallon or so .. and littel pot is like 3 gallon or so ..
you choose ... I know what I will do on my new run .. and that do include a repot a week before 12/12 .. and I did even take it a step furter .. and made a flowering soil/coco mix for them big pots .. full of Bat guano .. Epsom salt .. Lime .. Kelp aso ...