dear graeme regarding output profiling of printers with rgb profiles we are generating a target with the standard flags without adding iterative & adaptive full spread patches. we have made some tests adding such patches, but so far we do not see any advantage yet. first of all we'd like to ask if you can give us some more detailed information about the - f flag (-t, -r, -R, -q -i, -I) as we do not exactly know in what logic these flags will add patches to the regular grid distribution of the target generation. the second question we have; is it possible to add single patches into a ti1 file? we would like to add patches such as rgb (0,0,1 ; 0,1,0, ; 1,0,0 ; etc.) to fine-tune dark areas for instance... thanks for your help in advance! j