Kurta/Calcomp digitizers

Kurta or Calcomp digitizer users,

We are about to purchase a Kurta IS1 or Calcomp 33180 digitizer and would like to know what problems are associated with setup and use. We would also like to know if the drivers that came with GRASS (Kurta series III and Calcomp series 9100) work with these digitizers or if you have written others. Thank you for your response in advance.

Dave Pike