Sorry if this is a dumb question but if the coil itself has black char on it but the cotton is still pretty clean does this = a dead coil? I am confused because I am not getting a burnt taste in fact I'm not really getting much of any flavor at all. This is an ongoing issue and I figure its a combination of bad juice and possible miss use of coils. I prime well do dry fires start the watts low and all that but still having all sorts of problems. One thing I am doing is changing juice a lot in search or something good. I have been using X4's in the Baby beast flavor is good at times not at others. In the crown 3 .5's have been mostly awful .25's have been better but not great. I also have an Arco 2 That I have used a couple T6's in and a couple A6's with both I do get big dense clouds but little flavor except for when I used Halo's Tribeca which is probably the best juice I have had all around. On a good note I had a .4 Q2 Smok coil I forgot about laying around but I broke the glass On my BB tank. So I put it in my Ello min XL primed it did the pinhole trick and it has been solid for about 4 days now with Pachamama The Mint Leaf. Back to the question as I can take out the crown coils so easy I do so to see how they are looking and what I tend to see is black build up on the coils but pretty clean cotton. I see this even more so on the Arco coils. What if anything does this mean? Also thanks for all the help and tips thus far.