1. I don't really plan on doing any decals on it. I think the decals was a reference to using it on another model or something. As for doing a marble test on it. I have tried various things and so far nothing really stood out in my eyes as a "WoW" factor. I tried some other material I found here and there, but I am not sure if i need to play with setting more, or if it would be a better effect with light placement.
2. I did try to play with the lights for a little while. An I did get some very nice looking images. But basically I just moved them around, moved them forward and backward to see the different effects. I am still confused allot about all those settings. I remember seeing some info on what the settings do on the site with some pictures. But I can't find the link anymore since I need to use it.
I definately know I could drop the patch count by almost half. I figured out how to do hooks again ( i was letting go of the mouse button to early) An then just stretching the extrude points more I could as well.