I am running a Kanger subox Mini that I have had for just over a week. Right now I am running the 0.5 ohm coil with juice from 503. I have ranged from 18 watts to 22.5 watts and haven’t really noticed a difference in the amount if vapor I am getting. When I get up towards 22.5 watts I have noticed it starts to get a little warm. What am I missing here? My understanding is as I turn the watts up I should be getting more vapor. I have not played with the air adjustment ring at all. Any help you folks could give me would be great, thanks.