I've been pouring over the completed section here and some other places and I see a lot of builds with some really convincing weathering. What I can seem to find is some good step by step tutorials suited for someone starting new. I've never really gone with heavy weathering because I don't really know how or where to start. A lot of the builds I've gone through really only give simple information that seems to assume a certain level of knowledge for the people reading it.
Is there anywhere I can find some how-tos? I'm not talking about your basic washes and those things. I am more interested in advanced things like paint fading, flaking, stains and streaks, mud and dust, etc.