I'm pretty sure Bay is using the Sawgrass inks like most, in converted Epson printers (although they may have a Mimaki or similar grand format printer). The new Epson's are pretty good, but I think the intended market is textiles and signage, not fine art.
As far as black and white, my experience with inkjet dye sub is it's pretty tough because the driver depends on mixing colors to get grey tones, and the sublimation process isn't that accurate. For B&W you might try Image Wizards. Their heat press is supposedly accurate to within 0.1 degrees across the surface. The key to consistency is precision in the process ... ink laid down on transfer paper, placed in press which is pre heated to an exact temperature, and pressed for a precise amount of time. The quality of the press can affect this because some of them struggle with temperature consistency once they press and start transferring heat to the metal. I spoke with the owner of Image Wizards at length as to why he feels his are the best. Who knows what's true and what isn't, but his claim is he's been doing it for decades, involved in the entire evolution of the product, and his custom press (which is huge) cost over $500k and is the best press in the world for dye sub transfer.
I know the samples he had up looked good and a couple were black and white.
