Uneven burn after ash

[mail man]

any kind of wind outside? I get this when I hold my cigar too close to the window when I smoke in the car, the draft makes one side burn a whole lot faster than the other.
Also, what are you using for humidity in you humi?

[JiveTurkey]

You're letting the ash fall off on its own, right, not flicking or more than minimally tapping it?

When you notice it to burn uneven, try rotating the stick so that the part that needs to catch up is on the bottom. May seem counter-intuitive, but there is more oxygen below the cigar (as the fire hasn't consumed as much of it as it rises) so it will burn faster there.