I got my new eGo and decided that I wanted to use cartos on it. Bought the 510 cartos to be prepared. My question is...with the cartos do i have to use the cone ? I put the carto on with the cone and the draw was very hard. When I took the cone off it was a lot better. I am not gonna do any damage to it if I don't use the cone am I? It sounds like it is getting more air flow with it off.