I can also add that vertical coils are notorious for spitting, thats why they put that spitback screen into them thats a bandaid fix that IMO hinders the airflow. With a horizontal coil the juice spats all around but with a vertical coil the juice spits into the middle of the coil right where the airflow is so you get spitback from the pressure of you taking a pull. You see videos of people who fire a juiced dripper without a cap and see the vape spitting all over, thats whats happening but all into the center and hot juice has nowhere to go but up. A .5ohm coil at 25 watts would get hot fast so you are forced to pull hard and fast, burn your tongue or burn the coil...a double edged sword that cuts either way. Having juice under the mouthpiece is just the nature of the beast, we all have that no matter what tank your using.