Having never owned a stacked Dado, I found myself puzzled on how to place the blades and spacers on the table saw. The package is of little help, other than to show you the combinations of thicknesses in a rather cryptic chart. I turned to YouTube for help. So, instead of Freud posting how-to videos on using what you've already lined their pocket to own, they tend to focus on marketing more wares to you. After an hour of searching and watching stacked dado blade videos I finally determined that there is no real answer to my question. You simply have to use common sense. Place the blades on the arbor and space them out so the teeth don't hit adjacent cutting teeth and spread the inner blades out so as to keep it balanced. If you need to use spacers to get an exact thickness, spread them out as evenly as possible. Once I started cutting the blades performed very well. As I don't have a comparable experience, I thought the blades performed as expected, very clean cut.