I only know of a handful of people in the online cigar world who have any cause to worry about marrying of flavors in their cigars and those folks don't store their cigars as singles. Something like this would take years to achieve and most people here don't store cigars for years upon years. Even if this were something to worry about, which I don't believe it is, most palates would not recognize the difference. Now odors are a different thing and cigars can and will absorb odors in their midst. String a Lars Tetens in with your regular cigars will impart a smell onto your regular cigars. Will it affect the flavor, well, maybe. That is to say it will expose your other smoking snese, your sense of smell, to something other than what was originally planned for your regular cigar. So, store your cigars in cello or out, maduros next to naturals or Opus next to Havanas, you'll not know the difference.