Not sure if I have a "cigar nose" but I have learned that if I can detect ammonia or other metallic notes its going to be a shit smoke, I think a cigar should smell like something natural (duh) if it smells overly musty, moldy or manure-like I stay away. I just had a bad smoke not to long ago & funny thing is it was my nose that told me NO but I went ahead anyway because it was a free stick...the nose was right it was a real shitstick! Just my two cents

Rene