I just got the Epson 4900 and I'm trying to print 13 X 19 Harmon Matt Cotton Smooth in the rear sheet feeder. I know Velvet is the right surface but can anyone tell me which A3 setting to use? There are about 20 of them and I think I've tried half of them. With the 2880 it was a roll paper setting, but those don't seem to work either even though there are many of those too. The manual isn't much of a help. Anyone know?