The first few millimeters of ash are a useful diagnostic window. Before judging a cigar's construction, the early burn can help you distinguish an imperfect light from moisture or a persistent combustion problem.

Ask ten cigar smokers about ideal humidity and you'll get ten different answers. Some swear by 72%. Others refuse to go above 65%. The debate has lasted for decades. The surprising truth? Both sides may be right—depending on what they're trying to achieve.