I put mine on the top table of the E.P with some Tyvek tape, it's red and sticks well. I don't use the marks on the rod holder rod for angles anyway. I only ever use my angle cube. You can see it taped in the upper left hand corner not pretty but it works. You also have to put spacers in between the table and the blade guide depending on how thick your magnets are. All I can say is let your inventive mind guide you. If your angle stays the same on your knife blade and doesn't wobble around, your golden. There is no right or wrong. That's what is so cool about the design of the Edge pro..
You can also buy mounting magnets with pre-drilled holes. Hopefully I will eventually get around to buying and mounting them, but haven't got around to it yet.