Been a Vea user for a couple weeks. So far I'm really happy with it. The cartomizers are pretty bad ..., horizontal bottom coil that won't burn any filler material. Tested to see how long the battery would last and got 3 days out of it which is awesome for a 650mah. guess it's because the voltage is so low. I contacted JC about the rev 3.0 cartomizers asking what's new and they replied,
The new design improvements include:
Resistance changed from 1.8omhs to 2.0ohms
A new base metal for the
threads that offers a more consistent connectivity with the battery
A slightly larger air passage opening at the base of the
threads
A larger air cavity inside the
threaded base
A slightly smaller diameter for the internal air tube
The easy-off tip has a slightly longer connection
Individually blister packed in-house at our facility in Hartland, WI