I am new here as I just signed up today to basically see if I could get some help with this issue. I have a smok h-priv with a micro tfv4 using a micro clp2 coil. I have had it for a month or so the first coil was already in the tank when I bought it so I primed it, let it set for at least 30 minutes and vaped at low wattage starting at 30 and working my way up. I had no issues. The first time I replaced it I did the same thing and it was also fine. Now, the last time I changed it I did the same ritual as I always do and I get a slight burnt or something like a metallic/burnt taste. So thinking I just got a dud coil like I know you can I changed it immediately cleaning my tank and changing my juice. I even tired using a micro stc2 coil instead and I got the same funky taste. So after kinda vaping for a while usually like a day or so the taste goes away and it's the ultimate vapor and flavor combination. So about 2 weeks ago I bought a smok gx350 using tfv8 cloud beast tank with a V8-Q4 already installed. Everything was awesome with that set up until today I was getting a burnt taste so I changed my coil. I replaced my coil in my tfv8 tank using a V8-Q4 replacement was included in the box with the tank. Again I am getting the same burnt/metallic taste like I get with the micro tfv4 set up. I have been vaping for a year and I feel like I am doing all I am suppose to in order to properly change a coil. If anyone knows why this maybe happening or has also experienced the same thing I am talking about I would greatly appreciate any comments!