,
That's a tight squeeze in a 4x4 with 7 plants. I might consider taking like 4 or 5 of the heathiest and shit can the rest.
Anyway, why top? (I can hear the screaming now
)
Is it because of height? Don't worry about that, especially under LED, and plants above 5' are rare indoors.
More bud? Maybe, but that was never the case in my experience actually.
One thing I hated about topping was the shock effect on the plant, because when you top you are slowing the plant down for a around a week, so an 8 week plant just became a 9 week plant.
For what?
I've done them all, snipping, trimming, mainlining (total waste), fim, fip, etc, and now I just let them grow.
Bigger bud, bigger colas, faster finish, so unless height is an issue, let the plant grow on it's own.
This is a cola that will weigh in at around 2 oz dry and you will never get that on a topped plant.
View attachment 4306816
It's also a pain in the ass, but if you decide to do it, I would do it at 3 weeks to give it time to heal before you bloom it.
Good luck