You know, Jim... my lament is that I've done virtually no scanning of my collection. I've never been able to find the time to do it, and when you're starting from scratch it's hard to get off the dime and just start doing it. I wish I'd started scanning when I started collecting!
So for the time being, I'll just say that David's group probably represents the top 10 chips that I've seen... and I'll also say that I will probably never own even one of them.