Is that with the Shaddow
tank? Not really a fan of that
tank, but if it is new, remove the coil and wash the
tank thoroughly with dish soap, rinse well and allow to dry. You might also want to switch out the coil to a new one.
I've tried my shaddow tank a few different times, but always found it a bit off tasting. IMO, it uses thicker wire, so takes more wattage to heat-up. Just different from my normal style. It's still usable...just not my favorite.