I'm using a uwell crown tank .5 ohms dual coil on siglelei 150w tc mod and the resistance is fluctuating from .51 to .61 every hit it changes . I just took a pull at 61.6 watts and the resistance went from .53 ohms to .59 ohms, after typing that i took another pull and it went to .53 resistance . I put it on my evic mini at 60 watts and pull it stays at .54 ohms. I put my velocity with a .39 ohms build on siglelei and it stays at .39 ohms. I just put another crown with the .25 coil on siglelei at 70 watts and it goes only from .26 to .30 which isn't as much as the .5 coil . Why the fluctuation so much with the .5 stainless steel coil on the siglelei ?