Hello all, I have read through some threads and I am still confused about the EMOW coils in relation to the voltage. My EMOW came with 1.5ohm coils but it seems like they aren't the proper coils for anything but the 3.7v setting according to the Kanger chart?? (which says 1.5ohms is for 3.1-4.0V) though I had been using it on the 4.2v setting before I was aware of this chart and didn't seem to have any noticeable issues (have only had it for 5 days now). Is it ok to use the 4.2v setting with the 1.5ohm coils or is that too much for it and I should stick with the 3.7v lowest setting??