I thought I had all this stuff pretty much figured out, but now I'm not so sure......lol
So the 510 is a 2 piece model? I ask because I thought the 510 was 3 pieces and I have a vapor king and it is only 2 pieces.
So can I use my cartomizers on a 510?

I have heard a lot of people talk about them and they sound like something I may try, but I'm not into all that "tinkering" that goes on with the 3 piece models.