[markem]

There are many reasons why a burn is uneven, many more than I know about for certain!

I try to figure out why. I have one humidor that, for whatever reason, tends to leave my cigars with a "wet side". I dry box these and they are fine, but sometime I just smoke them and deal with the burn issue. For these, I find that a touch-up with a torch is the only way to get an even smoke. If I fail to touch-up, I get the classic canoeing.

If the reason is wind, then turning the slow side to the wind often helps, but sometimes I have to play with the positioning. I can almost always figure this case out and get it to burn nice.

If the reason is the draw of the stick, then it gets complex and it is almost always a case-by-case result.

I use the technique that Larry pointed out which is to rotate my cigars while smoking. I tend to turn the cigar about 1/8 to 1/4 turn after each puff. I have absolutely no idea if this works, but it makes me feel like a baller so I do it.

You have hit on one of the more elusive questions about cigars, IMO, and I am anxious to see what all gets shared as I feel hopelessly inadequate in this area.