Cigar burning issue

[T.G]

Originally Posted by liltim

I'm not sure if punching will cause this effect. I have wondered it a bit myself. I used to punch most of my cigars but have switched to cutting for fear of the same effect. Most of the cigars I smoke have been sitting in my humidor for at least a month. The humidity is kept between 68 and 70%.

From my experience, no, a punch cut, in and of itself, won't cause the tunneling the OP describes, but the over-humidification that Bob described will.