GoodFriend
Lumberjack
this fella from overgrow.com named BOG (was a breeder too from what i know) made a guide for his transplanting method... BOG transplanting... where you remove the bottom portion of the container and just slightly bury that exposed root bed into fresh soil/medium...so you veg in the cup, then when you flower instead of creating transplant shock, you just put it on top of the gallon jug, right?
it avoids shock that comes along with a hasty/clumsy transplant...