here's what you wanna do exactly after 10 days into flower remove all branches and stuff that is not gettin any light. this will give you an idea of how big the flowers will actually be. I take off anything that doesn't have a flower structure bigger than a thumbnail. once a week go in and prune out all fan leaves that are blocking light. try not to prune everyday as this will stress out your babies.with this technique I have doubled my harvest every time. Happy trails- PK
Post Script: if you're working with a strain that takes longer to go into flower, I would say wait 13 - 15 days before doing a big prune sesh
