Hi. I have a nautilus mini with bvc coils. They have worked fine with every other flavour I use and last about a week or more before needing to change. But For some reason with strawberry cheesecake from vapewild, after half an hour I start to get a burnt taste in the coil. The blend is 50/50 pg/vg. The taste completely turns me off smoking it but the flavour is the best flavour I've ever had. I've tried changing coils three times and cleaning out the nautilus again and again, no luck. What could be causing this? Any help is appreciated thank you