I very recently began investigating inkjet negs for Pd/Pt. I’ve rapidly found that the dye based black or red ink for my Canon i960 does not give near enough UV blocking to give sufficient negative contrast. Highlights fog much too rapidly. I think Pictorico film is clear enough to use a second sheet with highlight density enhancements registered to the first, but good registration could be problematic.
Sandy King has stated above and elsewhere that he gets excellent results with his inkjet negs. Unfortunately, I have yet to personally see one of Sandy’s inkjet neg Kallitypes, but I don’t doubt this assessment. However, the key is that he uses Epson pigment-based inks. Apparently, this is absolutely required to get the proper density. Regarding pigment inks, I may be out in the cold with my Canon printer.