Athosanswered grow question 6 years ago Well, it really depends on how may tops per sq ft you want. But if you do top again, be sure to give it a week before switching, so the new tops develop. You could top the top most colas so the lower ones catch up in height, so to have a more even canopy.
I prefer a canopy full of tops, so I tend to promote a lot of colas, 16 to 20 per sq ft.