I'm using the Inkjet Fly Small Foot cartridges which appear to be the same as the Cone Color ones on my 3880. In over a year's use I've been generally very happy with the ink and cartridges, however there is one oddity. My cyan cartridge is susceptible to air bubbles after sitting for more than 2 or 3 days, particularly if the printer has been turned off whereas I've never seen a skip on any of the other colors. I got a replacement cartridge from IJF, but the problem is unchanged. Just printing a sheet of all cyan on plain paper fixes it every time, so it's not a huge problem, but I was wondering if anyone had any thoughts.