Plastic on or off?

It dosent matter.... either way is okay IMO, the cigars are stored in the outer wrapping at the factories and stay wrapped until prurchased.

If the moisture from the cigars can escape with the outer wrapping intact, in theory allowing the cigars to dry out, would it make sense that the humidity in the himidor could also creep back in thus keeping them humidified?? Makes sense too me.

Some folks are known to wrap boxes of cigars in saranwrap to age for years, the cigars are kept as air tight as possible, the slower air exchange is believed to slow down but also improve the aging process.