Start naming names on the liquids. Some very dark and/or very sweet flavors can kill a coil in a matter of hours. Generally the darker and sweeter the flavors are the faster they crud up coils.
When you hit the "tastes burnt" point what are you finding when you clean? If the coils and wick are a blackened up mess - that's it - stop - they need cleaning.
How are you cleaning the Kanger stuff? A simple rinse won't fix this. Are you dry burning?
When you hit the "tastes burnt" point what are you finding when you clean? If the coils and wick are a blackened up mess - that's it - stop - they need cleaning.
How are you cleaning the Kanger stuff? A simple rinse won't fix this. Are you dry burning?