undercurrent on steriods and way bigger res per plant. more flow allaround. He may have had top drip in there as well. Claimed 8.3 avg per plant, 4 plants, maybe 9 1000w in a checkerboard pattern. Innovative as shit. i forget the veg time and all that just big plants. Jalisco Kid is someone who could explain far better than I could. Given the fact he makes tanks for there.