I have a KR808 that I've been using about 4 days - haven't smoked an analog since I got it.  I was smoking the prefilled cartomizers that came with it until today.  I received some ejuice from vaporcountry.com and filled a blank carto with pina colada flavor.  I followed Mistress Nomad's instructions, taking the white tip out and filling a drop at a time until the whole thing was glistening.  I let it set about 5 - 10 minutes and then attatched it to my usb passthrough.  I am getting very little vapor off of it.  I ordered from vaporcountry because another member (I believe it was DonDaBoomVape, but not positive) said their juices produce good vapor, so I figure it's operator error.  Any advice?  Thanks!