The first is an introduction to UberSurface2--the layers surface shader for DAZ Studio. Tutorial includes an overview of new features as well as basic how-to upgrade Materials from HumanSurface (Elite Human Surface Shader/HSS) or UberSurface.
The second is a more in-depth explanation of how to use the new layering functionality. The video steps you through adding and modifying layer presets. Add dust, then change it to varying levels of gore using a single mask.
This images shows a bit of the render progression during the tutorial: