To preface I'm not too knowledgeable when it comes to the ins and outs of how everything works. I'm using the Curve VT40 from anywhere between 25-40W at 300°C and everytime I take a drag from the E-Cig I get this foul burning taste which I can't get rid of. The coil I'm currently using is 2 days old but it was also doing it on the last coil. The coil is 0.15 ohms and the liquid I'm using is predominately VG. I was told with the last liquid I had that it needed to be mostly VG as it vapes a lot better on sub ohm coils and everything was great with it. I then bought a new liquid (80% VG) and I'd say 1 out of every 10 drags produces any flavour or is even bearable to smoke. Has anyone got any advice on how to fix the issue and am I doing anything wrong?