any and all pruning needs to be done in veg .. if there are lil sprigs growing at the base that will never produce anything then just clip them and either clone them or trash them.. if they grow out and get lil nugs then use them for hash.. when they go into flower the trimming should stop, this will insure full growth and healthy nuggs. trimming during flower will stunt bud growth and slow thc production.. when in veg you can do just about anything you want to them.. in flower they need to be left alone..