All I can say is that I had a few treasured visits at Bill's place right after he made those profiles for the 9600 Epson. The ABC's of color management tell you that if you use the same printer/paper/ink combo that the profile will still be valid. Bill, as the stellar engineer he is, wanted to make the absolutely best profiles that could be made for the printer he had at the time. The process involved thousands of samples which involved his getting up in the middle of the night to put another chart on his Spectrolino. He told me he was dealing with the "warbles" in the gray balance of the device. Personally, I have physically read individual patches of color charts in the early days, but Bill went waaay beyond this. I actually saw him explode an Epson engineer's head explaining his technique at a trade event. I recommended a photographer friend to buy an Epson 9600 just because of the superb quality of Bill's profiles. He told me years later that it was a terrific printer and that other photographers used to bring their files to him to print because of the quality. I tested the gray balance on it and it was GRAY. My guess is that your 9600 is not in tolerance to manufacturer's spec or there is an operating system/application version issue. Randy Zaucha Managed Color