Hi all, again, having problems with my prepunched cartos. I have a J-tank (electronicstix.com) and a mini sub (momandpopvaporstore.com). I use Bobba's Bouty. Both cartos from both shops after few days become metally in flavor. Wierd flavor, like smelling a leadpipe! TH and vapor still the same. I am sure it is the cartos since i removed them from the tank and they taste this way. I replaced one with a resurrector, still going but losing flavor slowly, and replaced the other with another boge from momandpop, this one also slowly becoming metally.I can't figure out the problem. i top up the cartos regularly before the tank is full, but the cartos seem saturated already. I tried to release the pressure from the mini sub many times also still same problem. Can anyone using these tanks show me the way to handle them? Thanks.