A. This is actually a naturally occurring phenomenon which is caused mainly by the buildup of tar, moisture and nicotine as you smoke your cigar. It's not unlike what happens with a pipe after a while. As you get down toward the bottom of the bowl, the juices are often sucked up through the stem.

Basically, every time you puff on a cigar the same thing happens; tars build up in the tobacco. Add the build-up of moisture to the mix and the flavors are intensified in "the last act."

According to one of my resources, the way you cut your cigar can actually positively or negatively affect the concentration of flavor in those final inches. By cutting a narrow opening at the head of the cigar, like that made by a punch cutter or a V-cutter, the tars and moisture will naturally build up more at the head. This also speaks to why tapered head cigars like torpedoes and pyramids tend to be stronger. However, a wide cut - one that shears off the top of the cap as a double-blade cutter would do - can actually help suppress the buildup of tars and moisture. Try it yourself and see.

Finally, try not to draw too hard or too often on your cigar. That will only increase the buildup of tars, nicotine and moisture that much faster.