coil issue

Hey guys i have a Smok cloudbeast on a smok 220w alien. I am using T10 coils but have used the 8s and had this issue as well. While vaping the slots where you can see the cotton through the glass will turn black, then eventually dicipate. When changing coils they are FULL of black gunk im using...

Hello! So I had a aspire Atlantis, and my brother gave me his Smok Beast TFV8 with a Tesla 200w TC. I just got the new coil and it worked. But when I turn it past 60w it says atomizer short?!? I don't understand. The guy at the store said it was a 8 coil? I'm almost to the point of switching...

hey guys I'm new to the site so I'm hoping to learn and read a lot about what you guys say. So I have a issue with my t8-v8 coil that came with my tfv8. The issue is that the recommended vaping wattage for this .15 ohms is 50-260 watts. Now if I try to vape the coil at 120 watts all I get is...