Hm, I ran into another little issue with my mini. While adjusting airflow, I tightened it all the way to closed, and then gradually open it while sucking through the drip tip to find the airflow that I like. Well, apparently I tightened it too much, as when I try to loosen the AFC screw, it started unscrewing the center post and my build deck started to come apart. I took the entire center post out so I could fix it, but I was having a lot of trouble untightening it. After some time of fiddling with it, I finally got the AFC screw loose, so I carefully screwed the center post back in, and then adjust the AFC screw again, making sure to not tighten it all the way down again to avoid that issue. My new coil was at 1.14 ohms. Everything seemed fine. After putting the rest of the tank back on top of the base, my resistance jumped up again to 1.3. I made extra care to avoid moving the build deck too much or doing anything to disturb the center post, but somehow it STILL changed. I mean, since it works, I'm okay but I just don't know how to get the darn thing to keep the original resistance! In pbsuardo's review, he mentions that the resistance has a tendency to jump a bit, so I know it's normalish, but nevertheless, I hope to eventually find a fix to this issue.
But yea.. try not to tighten the AFC screw all the way or you will run into my same issue. I am actually pretty relieved I got it loose, because otherwise, I wouldn't be able to use this tank at all with the air completely closed!