is scrog growing where you but the screen over the plants, and what do you mean by half a zip off a clone . i have been thinking for flowering my clone when they are at 6-8 in. right now all i do is flower at 12-14 in and veg for 60 days. also can you flower 32 plants with only 2 400 hps bulbs if they are only 6 -8 in call when you start flowering