So I'm just curious as to what is reasonable for voltage drop on my mech. I have a smoktech fury-s with a smoktech xpure rda and I'm using a MNKE IMR 1500 mAh 18650. I have a dual coil setup reading 0.7 ohms and my battery is showing 3.9v without the rda attached. Once I connect the rda it drops to 2.7v which seems like quite a bit. Any advice would be appreciated.