I got the natural by smoktech a couple weeks ago. Its been working great, but when i use it with an 18490 AW IMR battery it has to have a gap or two when i screw the mod together it just can't screw together all the way. I've adjusted the bottom pin near the button and the top positive connection to no avail. It still works in 18500 mode just doesn't look and feel as nice as it does in 18650, or 18350 mode. I don't know if anyone has any suggestions to solve this with minimal modding. Also there is no configuration i've found where i can use an 18350 with a kick, which would be nice. Oh yeah and when i use an 18490 and a kick theres also a gap. Any ideas guys?