I've been loving my EVOD, and was working great with 1.8 ohm could head. I wanted higher resistance so I bought a replacement coil head rated at 2.5 ohm. I popped it in my EVOD and started at 4V, then increased to about 4.5 since the flavor was a bit weak. Now I'm getting very little vapor, and the area where the coil sits is hot to the touch. I never got a burnt taste, and can't I imagine that 4.5 V would be too high for a standard resistance coil. Upon taking it apart, everything looks fine, but I did notice that the wicks aren't saturated, so it seems that for some reason it is not wicking the juice properly. Anyone have any ideas?