When I first bought my target pro, I LOVED it. Well I ran out of the coils that came with it and had to order some new ones online. I went with the kanthal kind and I can not keep them from having that burnt taste. Ive tried everything. I primed the coil with juice and let it sit overnight, Then done multiple dry hits with the air valve shut. Still that burnt taste. This will be the fourth coil that has done this to me. I have even cut the watts down to around 18. What can I do here???