Question for you guys using this.
I've noticed that using the ZFM mod, I am frequently getting a burnt flavor. I didn't know what was going on for a while, but I think I have found the problem. I originally associated the burnt flavor (correctly, it seems) with liquid not reaching the atomizer and effectively causing a dry burn of sorts.
It turns out (and you can try this yourselves), if you fill a cart (leaving the plug out) and then tip it upside down to empty it, the drops require QUITE a bit of coaxing to come out. In fact, I was completely unable to get about 4 drops worth of liquid to drain from the bottom of the cartridge, even with tapping/shaking.
So I think the reason behind the burnt flavor I have been experiencing is simply that the liquid isn't always moving around the cart, oftentimes stuck in the bottom and clearly not reaching the atty. Anyone else experiencing this, or does anyone have any suggestions about how to improve the flow?