The only thing i've seen Dez call for was the circle pit during Meet the Wretched, which isn't even a pit really since everyone is just running in a circle barely touching each other besides the occasional light push in the back.
09/19 - Crowbar/Revocation
10/06 - The Black Dahlia Murder
11/30 - Slipknot/Korn
12/27 - Protest the Hero