I would choose this:
12 inch Mega Truss Pick, 1 ton (mega truss pick 1 ton)
http://www.ia470.com/primer/motor.gif (typical box truss wrap)
In terms of stabilizing the truss of torquing or movement while hanging/focusing.
I understand the mega clamp allows a secondary straight down rigging point, but again, couldn't a second down wrap accomplish *about* the same thing?