Okay, fellows, here's my latest efforts. And boy-howdy was it a lot of effort!
I've removed half of the weathering and detail layers I had, created about a dozen (or more) new layers, tweaked pre-existing details, re-created from scratch other details, and finally changed the materials.txt values to something I can live with in conjunction with how they react to the in-game bitmap!!
Whew!!
Definitely looking for feedback. My eyes need a break because I'm happy with it and that means I need to not look at it for a few days, lol!
I'm attaching 4 new screenshots, but also uploaded a short youtube clip (as before) to show sun/materials interaction. Although this is still processing (give it a little time), the link is here:
http://www.youtube.com/watch?v=vpGNtI6CmnEAnd the screenshots are below. Feedback much appreciated!