That was a method I came up with to drain a whole bucket of mostly whole grain feed for feeding meat chicks and just carried it over to feeding layers, but found out I didn't have to strain the layer feed if I just mixed it thicker and left it dryer. Eventually I came down to using the single bucket when I brought it inside for the winter and found I liked the simplicity of it more than the double bucket system.
If this site would allow us to edit our first page of the threads that info would be included there but they don't, so folks find out much later that the method has morphed and has become more convenient to use and feed as we go along. I'm sorry about that and wish I could edit that first page's info but it is what it is.