In the Dutch graphic arts magazine Pers was an article written by the (famous) Swedish specialist Paul Lindström It appeared in the AGI magazine and was translated in Dutch. It covers GCR and several kinds of Device Link profiles such as used in Alwan, GMG, OneVision and Binuscan. Was Lindström involved in the project you mentioned? The University of Dalarna Borlänge in Sweden investigated the different separations and the influence of UCR and GCR. The report was written by Emmi Enoksson and Anders Bjorstedt with some help of Jan Erik Nordstrom. The tools Photoshop, PrintOpen and ProfileMaker. The conclusion: UCR is descrobed as reducing CMY under K. GCR is described as reducing amounts of CMY by K in gray and colors. Their tests proved that UCR is just a limited amount of GCR. They introduce just a new word for GCR: CB or "Compensation by Black". Same technology but different expression. My suggestion: Get rid of UCR and use just GCR. Is this research linked to your special project? Awaiting your documentation, Regards Henk Gianotten. At 04:15 16-4-2008 -0700, Spitfire wrote: