Piezography clogs, but not as much as regular Epson inks.
If you don't plan to print on glossy papers, it's also worth looking at MIS Eboni inks. They're pure carbon and not resin-encapsulated; they can only print on matte papers/canvasses (including uncoated papers) but don't clog at all. You can even get a satin or glossy print out of them by coating with Timeless or another varnish afterwards. After all, all base papers are matte, as are baryta layers - a glossy paper is essentially a matte paper which has been pre-coated with a glossy varnish that's permeable to certain inks.
