Flipping my lights to 12/12 end of this week after a flush> never used sledgehammer before. Seemed ok. probably should have used more water in the flush. I was worried about stretching as this is in a small closet. My AOG was at 19 inches and solid Indica, so I wasn't too worried. In hindsight, I could have topped the AOG one more time to keep the size relative to the Lemon Haze which I started three weeks later than the AOG. Flush and added a trellis for next week and flowering.