I've got about 7 or 8 Maya heads but I never got the one mentioned here. I'll have to take down Henry a couple more times. My favorite is a gothic looking one, used with the Bandit skin. Great stuff. --- It's a rush the cockroach's get at the end of the world.
I've been farming Henry and I haven't gotten any customization mods, but I get at least 1-6 erridium each time. Not bad, he only takes 1 phase lock to take down. --- It's a rush the cockroach's get at the end of the world.