Hey man thanks for taking the time to write all that!
I attended the Phoenix Mayhem festival and the sound sucked for pretty much everyone except the main stage acts. It was disappointing but I still had a good time! All Shall Perish's sound was real bad and they were who I wanted to see the most! Still a kickass set though!
Also, did In Flames' lead singer sound bad? I don't know if it was the heat here in Phoenix or if he was sick but it was off! Still a great set too!