Very nice series Bill!
Re sharpening: One thing I have noticed, especially with the P65+ and good glass, is that I typically do not need any further process sharpening. IOW, I do capture sharpen (lightly) during conversion in C1, but then have basically stopped doing process sharpening in CS. I will do a touch of output sharpening as required based on output and size. For web, this is usually stepped down-sizing in CS at 50% increments, using bi-cubic sharper on the first two only, then plain bicubic afterward to target size. So far seems to be working quite well for me.
I second Jack's assessment on sharpening with the P65+. I have found the best results with zero sharpening and NR in C1, noise reduction if needed with Topaz Labs DeNoise 5 (excellent), and no sharpening until output.
My comparisons lead me to conclude that the P65+ properly processed is at least as sharp when comparing large prints to 5x7 and 90% of the 8x10 stuff I have seen. Since I do a lot of panoramic images I am feeling better off with a single P65+ capture than 6x17 images I have seen in large prints.
Especially with the Schneider 35mm XL, I can easily print a single capture at my maximum print size of 120". Usually with no sharpening or .2/180 unsharp mask. When printing that large, the digital noise of sharpening has more impact than no sharpening at all.
Using my previous method of capture/raw sharpening and NR in C1 with output sharpening just didn't stand up to large prints.
Something else I haven't seen mentioned is the output scaling in C1 is incredibly good compared to bicubic modes in PS5 and all other enlargement software I have tested.
Now if I could just find some really good C1 profiles to emulate popular landscape films (velvia especially) it would make my life a lot easier.