Under lights I trim all the little crappy braches that aren worth a dam only in the first week of bloom . I shape mine to where i have four main braches ,each same height and main colas. Power goes straight to those upper braches and i end up with nothing but big ballons on top! I gues they call it lolly poping , i call it not waisting my time on the shit underneath that isnt worth a dam. My nugs do get bigger this way ,but as far a fan leaves i always leave em on ....