Whats in there?

[mcquinn]

Could someone who has done a postmortem on a 510 cartomiser give us the 411 on whats in there?I am particularly interested in the filler material .Is it something a person could make a pattern out of and possibly replace when it starts to burn?I know this kind of sounds silly as they are supposed to be thrown away but it does not seem that is what you guys are doing with them.A lot of time has been spent trying to find ways to refill them but I have never seen any posts about restuffing one.I would gues the element should have an equal lifespan as a regular atty.I have just ordered some of the ones with the rubber plugs but have not recieved them yet.Pictures if you can.