Also, I think water cure is great for hydro if you don't flush before chopping... I am finding it needs another day or so to get rid of the chems. The main advantage is the speed of the cure and the easier smoke but you trade flavor and weight.
** Also, you can't really screw it up unless you put a lid on the container. I had cut a lot of holes in my lid but after talking with Videoman (who turned me on to this) I pulled the lid off completely and have a fan rippling the surface.