Topping needs at least a week or two of veg before you flower to give the new shoots some time to grow some foliage.

My first grow I topped a plant the day before i trhew it into flower and the shoots didnt have enpugh to to grow more before flower appeared, so the tops were not very big.

Next time i topped and gave them a coupleweeks before flowering them. The colas were MUCH BIgger and yield was also better. You have to let the plant grow more nodes before it flowers so it will have more budsites or else buds are small and yield isnt so good.


One more thing, Not topping produces very tall plants with one large cola. topping creates shorter bushier plants with more medium size colas. So if room is a problem i would suggest topping.

You should look up a topping technique called FIM. Its when instead of clipping the entire growing tip off, you leave the bottom ten percent there. It looks kinda retarted but If you do it right 4 tips start growing (instead of just 2)