That is a real nice grow, doco. I'm trying T5s myself (with T8s and HPS) and I think our grows are about the same age (I seeded 11-4) Your plants look very healthy/happy. I'm going to 2700K 54W T5s and 34W T8s from the 4100k that I used for veggin'. With the 250W HPS in a 4' x 3' x 6'6"H. That's a total of 530W right now, I well add a second 250W HPS in a couple of weeks when I go to bloom to total 780W in a 4' x 4' square. Similar grows, except for the strains.

Shov