I purchased a Kamry S1000 Mech mod to use with my Aspire nautilus the other day, and I was really impressed with how it looks when it came in the mail. I was excited. I took it apart, put the nautilus on the top and put it back together properly. Once I inserted my AW IMR 18650, I noticed the mod was completely too small to comfortably house an 18650. Without some very uncomfortable over-over-tightening, I couldn't even dream of getting it to fit. Is there some kind of secret, or is the S1000 a plethora of lies?