Shagrathanswered grow question 5 years ago Hi!
You wan't to remove EVERY side branch until you switch to flowering. The idea is to produce only the main colas of every branch.
I think the when and how to cut the branches depends on your plants reaction to stress, if it can handle lots of stress you can remove lots of branches in one standing and do it again when there is lots of new branches again or you can just cut them one by one whenever you feel like it.
you can check my first diary to get some idea but don't do as hard defo as I did..