i have a mutation xs and it has bottom air flow which makes it hard for me to wick because the cotton always accumulates where the air holes are. so if i drip too much they drop into their and leak out but i have fixed that simply by not dripping so much. the real issue i am having is that the juice is splashing all over when vaping on the inside and then dripping down and slowly leaking out of the sides. i often find myself wiping the bottom of my rda, removing it and wiping the pin because it leaks under the rda.