Robert Lunte

Cool.  Does your book teach black metal type vocal technique?

We wouldn't refer to that as being really a "technique" as much as a style. Techniques can be applied to all styles. But more to the point, the book and course teach several distortions and effects. Three of the distortion techniques would apply to your genre, yes.

I also recommend that you get the course and training content where you can watch the videos. there are videos of me demonstrating the screams that Im referring to and instructions on how to do it.

There are three options here:

http://thevocaliststudio.com/the-four-pillars-of-singing/

Sounds like a great program.  I will check it out.  The two books I mention earlier took me awhile to understand but they are working real well for me at this point.  I think Coffin uses colors for his vowel modifications, too.  Anyway, thanks for the info.