My wording made it sound like the color drivers have some extended B&W ability themselves.. sorry, not the case. But obviously good printing practice includes good color management, so the workflow will always include using a profile. Others have mentioned that DataColor's software features the ability to make profiles more suited for B&W by extending the sample patches to include a lot of grays, i1Profiler has a similar option, to optimize a profile using a high patch count gray and near gray extended chart. So the driver has no extended gray ability, but the workflow using the driver does, if special profiles are made for it.. hope that is more clear. T