my big plant started to grow tooo damn fast before I topped it. One thing for sure is before I topped it its had fan leaves the size of my head and was starting to increase growth rate every day. I had to top it to keep it under controll. Now 1 week later she is looking a lot bushier and now has 12 tops instead of 1. I also put the top I removed onto my cloner so that way I can either keep it and it will be Identical to the plant I removed it from or I can flower it to determine sex and if its a girl then I can make 12 more clones from the main plant and vegg them till they get big and flower them. by the time I get the clones rooted and into vegg the mommy will have more tops ready to take. heres a little trick I learned in the 80's that most people dont know........... while in bud if you were to put your plant in a cold environment for maybe 5 to 15 minutes for a few times a day your buds will produce more thc to keep the plant from freezing. you cant do it unless theres bud on the plant and the cold will kill the leaves. thats why hunters can find pot with snow on the ground because the pot is an evergreen and will be one of the only remaining green plants. I have seen this done before and it does work.