my coils dont last long at all, sometimes only like a day before they get all burnt up. switched to 100 vg recently but it was doing it with 50/50 as well. i used the 0.3 ones. im kind of new to vaping and this is my first sub ohm tank. really looking for a solution, its getting expensive to switch coils 3-5 times a week. i use mostly menthol plavors. any suggestions? thanks in advance.