I have a brass monkey RDA which has two coils in parallel. Would I be safe with two 1.5 ohm coils, that should give 0.75 ohms? I have been running two tiny 2 ohm 33 guage coils so I want to try to dip into the sub ohm range for a try. I know 0.75 ohms is close to 0.7 but is it too close?