Hey Bill, very nice photos. I have the Zero Image multi-format thing, and I enjoy playing with it. I mostly use the 6x9 format. Question for you: how did you get your Hindu temple photo so sharp? All of mine so far are "dreamily soft".
I have some WPPD images also; I'm in Ohio. I'll post links later.
Don't think I have a secret. Solid tripod and care taken when opening the shutter (standard model with no cable release.)