Tod is an excellent teacher, I work excatement like him. Tod told me that it is. But we must understand that I live in Belgium and I do not know have the same ingredients as Tod and Charles. I had to adapt my technique (formula, gelatin, albumin and dichromate, negative) based on my personal process but otherwise the principle of my technique is as excatement Tod explained to me, but I adapted to suit my work. Here is a Simple Transfer Carbon as process of Tod and Charles but with my process adapted.