We have an idle Epson P6000 so I've decided to put it to good use by setting it up for Piezography Pro. I've got the ink swapping kit here, ready to go. Looks like they actually recommend just doing a normal ink swap and then a number of procedures to purge the old ink out, as opposed to doing a full flush.
I had been skeptical of the technology for a long time but also very curious. I think it could make me a bit happier with matte papers in general. So, here we go!