I cut the cello open at both ends and leave cello on for protection. Air and Moisture can flow througyh both open ends.

Hope this solves the cello on/cello off question of the Millenium

That sounds like a good idea....best of both worlds.

Cello is actually a porous material made of wood that air and moisture can pass through. The holes shouldn't be necessary, as the cellophane doesn't hinder or benefit the aging/humidifying process. But, I definitely agree with the protection aspect.

Here's another one for those of you who cannot decide, how about....remove the cello unless it's yello.....thereby maintaining any sticks' aged environment ?

Sounds goodbut what about the plastic shrink wrap on my boxes? My local guys leave it on but does it matter?

This is how they are stored by us, as well as by the manufacturer. Just like cello, it will not hinder or benefit the aging process.