Hi everyone. I am not sure if the topic is pertinent in this forum chapter but I did not find a more compatible one. Ok, here is this issue. My toy: Voopoo Drag + Cleito Aspire subohm tank. The setup is quite new just 2 months or so, hence I have not used many replacement heads yet, just 3 in fact (one of 0.2 ohm and 2 of 0.4 ohm). Actually I have just fitted in the 4th one (0.4 ohm, I liked it better)...then it happened: the mod detects 0.38 ohm (??). I made four trials (2 with the mod on, and 2 with off) and even repeated them with another new 0.4 ohm coil. Every time the mod's reading ranged between 0.36 and 0.43 ohm but never gave 0.40 exactly as it did when brand new. I explored the net and it seems the issue is quite common for many brands of mod and subohm coils but surely there must be a limit of tolerance right?. Some notes say that the maximum tolerance is ± 0.05 ohm, others point out 0.1 ... That's a wide range I think. Any opinion? How much innacuracy it too much? I have not dared to fire the thing.. the actual metering is 0.38 ohm right now (batteries have about 75% charge and the tank is full of juice). Thank you in advance.