I just got my 808 and the stock cartomizers were a) horrible tasting, b) had a harsh throat hit and c) produced little to no vapor. I rinsed out the five cartomizers that came with the kit and refilled them all with VG-based Maple flavored juice.
The juice is a bit thicker so I had to be more patient with the juice and coax it down the side of the cartomizer. Once the cartomizer was filled, I let it sit to make sure it seeped into the filling.
No more harshness and vapor production increased (as one would expect from VG).
