Yes christmas tree sounds good, one main cola and then the lower branches on the side, sounds natural,dont know why it would grow faster, maybe a different strain of plant but if it is big watch its not a male, their sneeky bastards they grow faster than females in order to throw their pollen down on them.....anyway this picture is of a monster plant that has basically thrived on neglect apart from a 400w sodium and dr hornbys big bud,anyway good luck