looks great! i've used a 400 mh conversion with my 430hps ballast to veg a week or 2 extra to fill the screen before going to 12/12 with the hps. btw it might not be a bad idea to use the mh for the 1st 7-14 days of 12/12 this will minimize stretch and help keep the screen from getting too full before the plants "crown off".