This lady smoked the 7 inch Sir Winston down to 6.2 inches, the winner smoked it down to 6.6. This was in my Saturday Paper, thought the cigar smokers would get a kick out of it.
I'm guessing that if you smoked the cigar upright you could achieve that result. With a well rolled cuban I usually only ashed it once halfway through.
Good lord, I had no idea this competition existed. We used to play this with cigarettes, and the loser had to eat the tab end. I trust it's more civilised than that.