Re: papers for gum
Thanks Loris, Katharine and Judy for your comments on papers...it's more than just a matter of what you like - tips like "easy to coat" or "too textured for small prints" or "difficult without a support sheet" are very helpful in knowing what to choose, especially sight unseen.
Judy...you reminded me that I actually have some Somerset Velvet (from some years ago) that was specially coated for use in an ink jet printer. I just checked, and I also found some Arches CP. Guess I'll give them a try!