Hey so I have a uwell crown tank and using a joyetech evic vtc mini. It's 60w but with the upgrade its 75w. I wasn't having this problem until now and don't know why, bought tank 4 weeks ago and it was great. Just recently my .25 coils would get this terrible burnt taste after hitting it 5 times or so then I would sit it down for a minute pick it back up and another 5 hits or so back to the nasty burnt taste. I'm getting bubbles to come up so I think it's wicking properly. I prime it and warm it up just as I should. I stopped using the .25 coils for now till I can figure this thing out. I'm using the coils in power mode and using 55-70w. I went through like 3 coils for now been using the .15 nickel coil In TC have it at 600F and at 75w. The moisture is somewhat there and the taste as well but nothing like when I had the .25 in. After I get done pulling with the .25 I hear a sizzling. I'm currently using the ronin banzai juice. It's a 70/30 blend. And have the LG HG2 battery. Please help trying to quit cigs and this isn't helping the fact.