The topping should be possible over two times anyway doing as such will increment time in the vegetative stage. Test to see what is generally useful. A few experienced cultivators will top up to multiple times (or more) to acquire 32 branches and can be very much compensated for their endeavors. Sound plants typically require 2-3 days to recuperate from the garnish. In the wake of fixing, don't eliminate the leaves from that hub as these are expected to control the development of the branches from that hub. Never top during blooming as it causes a lot of pressure - which eases back development and hinders yield. Try not to top unfortunate plants. Additionally, try not to top more established, thicker development as this takes more time to recuperate.