I was always under the impression that more coil contact surface area with wick( more wraps) the better for flavor & vapor volume. That's why I questioned larger coil diameter = less wraps = less coil surface area? On the other hand larger diameter = larger wick = more juice capacity?![]()
I have wondered also but from a different perspective. Though there are fewer wraps those fewer wraps are around a larger mandrel. There are fewer wraps but each wrap is larger in circumference. I am sure that there is someone out there who can calculate if contact surface area really changes. I can't calculate it; if I ever knew how by now I have forgotten.