Hi, i recently bought the nautilus mini with bvc coils. I purchased a pack of coils , the first coil lasted 3 days the second and third only lasted a single day. The first coil became difficult to obtain a decent draw from and the other two tasted burnt after only one tank of liquid. I am using 80 pg 20 vg and the coils are real and verified. I feel there should be some sort of consistency in the products but im not finding it.I feel that the coils do not wick properly and poor wicking coils has lead to the burnt flavour. I had the same issue with bdc coils but atleast dry burning was possible and i could extend the life to 5 days or so. I am ruining multiple bottles of burnt liquid and having only recently upgraded to the nautilus hoping for better performance. I am very disappointed. I would love a refund if possible for the unit or for the coils to be replaced. The product is not what it was hyped up to be.