The strange thing about vapors tongue for me is that I can still taste food, but when I vape I can't taste sweet flavours, instead I taste a plastic unpleasant flavour that I assume is normally in the juice but is masked by sweetness.
I've had vapors tongue twice and they were both caused from dry hits, which leads me to believe that vapor's tongue is caused by some sort of chemical burn on your taste buds.
Either way, I find a good nights rest usually clears up the problem. I haven't had the issue go away by trying to kick start my taste buds with extreme flavors.
I had the same thing using my 510 atomizer for the first time. Had a couple of draws from it, then it tasted a little weird but I didn't know what it was and took another draw...yup it was burnt! Then all 5 of my clearos with various juice had the same scotch tape thing going on. I kept forcing them on my OH to test! Was scared it was burnt and didn't want to vape incase it was contaminated with plastic.
all was fine within 48 hours