Say I had a custom head, but I got tired of it, would I be able to change it?

Yeah, just send the new one to hampa.

unless you get everyone to delete the old head from their heads directory, and then re-run toriupdate. Don't think that will happen though ;)

Hampa, maybe some sort of timestamp should be checked on toriupdate to see if the head is out-of-date. Maybe check the last-modified date.

don't think he knows that Mr Slainvet