Ok so I have northern lights 100% indica, and kandahar 90% indica. Now I'm only growing 2 indoors under a 1000w mh/hps, and I need your advice/opions on wether I should top them to have 2 colas and tie them down, or fim them having 4 colas and tying them down? I've never grown a dominant indice before, I know there short already and I have a 4x4x7 tent so I can let them get tall. Please let me know what the best route is to go with, with these plants. Thank you very much.