I'm still trying to get CS6 to recognize my custom .iccs for two papers. The .icc files are in the correct folder and I've confirmed that other applications can see the files in the printer setup boxes. In fact, if you don't click on the "Off (no color adjustment) box and click on the "Show all profiles" box in the CS6 printer preferences box you can select the missing profiles there. But, you cannot select them (they are not listed) in the Photoshop print settings menu.
My question is - is it possible to work around this issue by leaving Photoshop in 'printer controls' settings and selecting the .icc in the printer setup menu? There are two places that you can set this: Input Profile and Printer Profile. How should these be set if I want the printer to print using the icc?