I SUCK at finding eyes!!
So, I just dug up my tubers. Very carefully printed out the photos from all you experts so I knew what to look for. Each clump of tubers was so twisted and complex, I felt like I was ripping them all apart. I couldn't really find the eyes except on a couple of occasions. I cut them down and let them for a couple days so the eyes would "pop" as you recommended, Poochella. Oh dear. Well, it was my first try so if none of them come back, I'll have to try again next year!