Well I wish everyone could grow 6 legally. I wouldn't complain myself, because of the little meds I use. You could grow monsters and have more then needed. I would normally steer clear of MG soil or even that topic on here, soo many read into things wrong and some have bad common sense. What you mixed with that MG makes me think there were other options like Promix or some other brand but after the amendments you added you should be able to handle and deal with the usual issues that some have with it and really make some nice plants. If your temps were off I would try to hook up the light hood to your exhaust system and keep ambient temps in the box/room/cab and run your bulb cooler as well but would have to see the setup to understand. You went from reflector to then talking about hood are they one and the same? I was thinking it is. Oh and with your previous experience you should have no trouble reacting to any nute issues as long as you keep tabs on things. Can't wait to see more.