Scanning through the various pt/pd processes, seems like the Ziatype or palladium (pd) print is a good place to start. The downside I see with the Zia is needing to control relative humidity in the paper/processing room. I have no idea what the typical relative humidity in my home is, but its well below the 65% recommended for the ziatype. I have no desire at this point to spend money on humidity control equipment. How big a deal is the humidity control? The upside of Zia is it seems relatively inexpensive compared to Pd. Pd seems like more of a wet process, but that's no big deal to me. The downside I see with Pd is its relatively high cost. Anyone have any insights or experience to share on this?