Thanks for posting a pic of these larry!
I found a couple of places that sell them (discount-tools.com is the cheapest that I found)
the places that I found only had discs ranging from 60grit to 320grit, nothing finer.

For now I think I will just punch some out of existing discs that I already have, but I am also looking at getting some Micro-Mesh since grit ranges are from 60µ - 1µ. (these sheets may be good for honing too!)

I see that you have a 15µ adhesive disc backing pictured, any idea where these come from?

Once I get these then all I will need is about $50 worth of radial/bristle discs from Bill and I should be golden!

Sorry for highjacking your post, I just got excited when I heard of these, and saw how good a job you were able to do with them!

Thanks!
Zak