I agree with eleltea. As long as any changes in temp/R.H. are not too abrupt, and storage conditions do not remain within "egg hatching" parameters for an extended period, then there really is little to fret over. (Whew! Faulkner would be proud of that last sentence!)
However I had one, (and only one), outbreak of beetles. The experience of losing some fine cigars (including 1/2 box of Hemingways) left me traumatized and carrying emotional scars for life. (Honest, doctor, my condition qualifies me for a handicap permit.)
So now, if conditions reach 73/73, I'm wringing my hands like a preacher at a Black Sabbath concert. My head says "relax, have a smoke" but my heart sinks like Enron stock the day after Martha Stewart sells.
So now, if I suspect a cigar may be harboring terrorist beetles, I use the "smoke 'em out" method to determine if the little rascals are in there. Even if no beetles are detected, I can be assured they will never infest THAT cigar again.
Keep smokin' (]]]]]]]]]]]]~~~