Hotly debated topic... i guess

I prefer to leave the cello on, makes very little difference to humidity, since the cello is micro-porous. Also, cello provides protection for the wrapper. Shuffling a bunch of nude sticks around can easily ruin a nice cigar. There's also the hygien factor.... not that we know what nostril that torcedore's finger was in right before he rolled your cigars, but I sure feel better buying singles at the B&M when they're wrapped.