Thanks everyone for your replies. Rugydp, I haven’t tried b&w printing with my 3800 and HPR308 and am encouraged by your experience. Matt4626, I find the EEM mottling problem strongly correlated with the 3800. I printed on a 2200 for a couple of years without seeing the effect, and I’ve taught at an art college where they run acres of EEM through a 2200 and a 4800 and I’ve never seen the problem there. Pflower, your experience is encouraging. May I second Eric’s request and ask which custom profile you have been using? Also, is there anyone else out there getting good color results with HPR308? If so, perhaps Eric is right that he and I have bad batches of paper. I have a sealed box of HPR308 from a different batch which I wasn’t even going to open, but if many others aren’t experiencing the problems the Eric and I are it might be worth breaking the seal and giving it a try. So please let us know if you're getting good results.
On a more positive note, I just printed a 24-image exhibition on Epson Ultra Smooth Fine Art an am very happy with the results (I have also had good results using Epson Velvet Fine Art). I did have one defective box of USFA—areas of differing density in the deep blacks—but it was quickly and cheerfully replaced under warranty.