Hi again, 
 
I finally got me some cartos.  My coffee juice tastes just right in them, but my beloved vanilla custard is very bland.  Do they take some time to burn in?  I got the extra large ones and fill them with a syringe.  I should have got the clearomizers so I can see how the level is.  When they get low, does the flavour just lag and you get the burnt taste, or is there no flavour at all?  How do I know when I need to refill?  I so badly need to taste my vanilla custard.  LOL 
Full me in please guys.... I know nothing about these things......