First week of veg I started off at about 800 ppm's. Increased it like 100 ppm's each day so by the second week I was up to like 1,500. And yes I totally recommend supercropping, my biggest plant was supercropped a couple times and she is a friggen bush! I also recommend topping your plants at least once, if not more. Keeps em short and makes multiple fatty colas.