Digital BW, The Print

>...i have been a PURE printmaker (etcher, etc) for many
> years 

Question for you: as a real printmaker what have the "archival" issues
been?  I assume you have had acid free rag papers, but do you have
inks that don't fade or color shift?  What have etchers, silk screen
printers, stone block printers and so on had to deal with on this
subject?

Regards, - cj