as long as you dont disrupt the root ball to bad ( if their rootbound it should come out in one pot shaped piece) you wont have the least bit trouble. it always seems that come flowering time each year, ive always got a couple that decide they want replanted when there about half way thru. just repotted 10 big (7ft+) plants out of 30 gallon pots into 50 gallon pots without issues. youll also notice right after trasplanting during flowering youll get a big quick growth spurt. the 7 footers i planted jumped a good 2 feet within the first week of replanting.

this little bud came off of a bottom sucker branch on one of my bubba kushes . it still has a ways to go at least 2-3 weeks i think). this was the smallest bud on there, and its as big around as a coke can. its gnna be an easy multi-pound plant