Ok so I've been vaping for over 3 years now and had this vape for almost a year. Lately none of my coils seem to work properly longer than a day. I never really vape at high wattage but have been trying to vape in the best range listed on each coil. Currently vaping on the baby t8 V8 on 30watts...after a few puffs it tastes burnt. Any ideas because when I've tried the suggested wattage it tastes even worse?