Sounds like you had a blast. When I saw that setlist for the Metal Masters 5, I was so pissed I didn't make it.
I have never been to Namm, but was able to get into the Schecter show last year at the Grove. I was able to get in for free thanks to a friend. I probably would have went this year but my friend was sick. Last year the main bands were Shinedown and Kyng. Not bad but a little boring and not my cup of tea.