Honestly taking that path doesn't feel right with an economy based server. Why doesn't the server invent other cool ideas as they did with trade shops and banners involving the economy.
Heads value would drop to a very low prizebecause of it being so common if we can get players' heads after killing em and no support
Spider, why would you disagree with Cheesy saying this isn't a PvP server? He is not wrong. If you think this is a PvP server then you are looking at the server the wrong way. PvP is only there to have fun while you play skyblock, it should be nothing more. I'm going to say no support. I prefer heads being rare and I'd like PvP to stay the way it is.
Head thing: No need for more useless items. PvP: Still no, and here is my reasoning. It can be and has been done right and ended up great, but the flaw was complaints over losing items which you just can't fix (whiny kids will whine). It was added a second time (last go round), and was poorly executed. If it were added again in the same manner it would be worse rather than good imo.
No support. Dropping heads will make heads currency in game like some people stated above. The admins will never add the head drop, since you can not even get your own head with your donor400 creative item.