I've noticed that some flavors work exceptionally well in the older carto style (cotton wadding) and are crap in a bcc or wick fed system. Mostly I've noticed that any fruit sweet flavor will outright destroy a wicked atty, where non-sugary flavors will tend to last forever. Anyone know of a flavor site that recommends the type of atty to use for whatever flavor you want? Or am I just going something horribly wrong? I use a Kanger Protank heavy on vg