Question: how much of a cigar do you cut off?
Answer: Ideally, you will be cutting about 1/16th of an inch (or 2 millimeters) from the tip. Put the cigar in your cutter and bring the blades so they are just touching the cigar. Next, cut the cap with swift motion. If you go too slow, you run the risk of ruining the cap as the blade may drag some of the tobacco as it cuts.