I am hoping to do knock-down texture on my wall. I have several questions for different applications. Is it easier, or better to do first the texture and then apply the paint? or should I add texture to the paint itself? I think I would like to apply the texture first, using wall mud watered down. Is that a good idea, and is it possible? Also, I would like to know how I am to apply it. With a roller or a brush? Is it possible to apply with a brush? Thanks again.