[markem]

Uneven burn can be a sign of smoking too fast or it can be because of the cigar itself, so don't forget that part.

I find that putting the cigar down between puffs is really helpful. A long time ago, I used a cheap egg timer set to one minute to help. This was recommended by the FOGs at Club Stogie and really made a difference.

Note that if the humidity across the cigar isn't the same, you can get tunneling, cones, and canoeing quite easily.