I have had an absolute nightmare lately, I had a kangertech subox mini kit that ran perfectly for about three years before it died. I replaced this with a Tesla wye200 and OBS Engine Nano based on some good reviews but no matter what I cannot get more than a few days before the coil dies. I used to rebuild the coil on the kangertech every 3-4 weeks which was fine but I am sick of rebuilding coils. Is there that holy grail of a tank that will last 3-4 weeks of use? My preferred vape on the kangertech was .5 build at around 23.5-25 watts depending on how the cool performed. Currently it’s running at 19 on the Tesla which is ok but lacks flavour and seems to get hot quicker. I have a tendency to chain vape when I get a break at work and in the evenings. I could really use a bit of advice, been struggling a little to stay away from the smokes the last few weeks, despite being off them for three years now. Thanks in advance