My favorite electronic cigarette company has just released a new line of cartomizers with vastly increased vapor output. I just got my first pack today and so far so good.
If you are a Puma user I strongly recommend you start buying your cartomizers from Green Smoke. They fit Puma batteries (as Puma cartomizers fit Green Smoke battery) and can be bought at a discount, not to mention you get a lot more options with Green Smoke cartomizers (i.e nicotine levels, flavors).
Make the switch today!