Well a
DDO on this design will not be on the outer edges of the devices. They doubled dies will be on the centers of the designs on both sides of the coin. (I've not seen doubled dies on these designs yet, but because of the single squeeze process, that will be the areas of the design hub doubling:



But with these designs, it maybe a while (or if ever) if we will see a doubled dies on these designs? But looking in the wrong direction, will not find them. The areas you are looking at is where
Machine Doubling and die wear will be seen.