Hey guys, I have been building 2Ω coils with 32g Kanthal which work fine on my VV Grand. Last week I received some 28g Kanthal to try some low Ω builds, they hit amazing on fresh batteries but here's the problem - after a couple hours of vaping the quality and quantity degrade very fast. So I decided to do some testing, after about twenty minutes both batteries meter around 3.8v, an hour or so later one of them drains down to around 1.5v while the other battery remains okay. These are (4) AW IMR 18350 bought about a month ago from RTD, at first I thought it was faulty batteries but after a few days trying the 28g I'm suspecting it's an incompatibility with the build and mod.