Now, I'm merely hypothesising here, but considering even closed tubes allow humidity flow, yet obviously restrict it, wouldn't this fact allow for a much more stable maintenance of the cigar in question, where humidity spikes (due to opening the humidor and the humidity pack compensating is the first example I'd think of) would have much less of an impact on a
tubo, thus resulting in a different result after aging? Not necessarily better or worse, just different. I never remove from tubes or cello, nor do I put cigars into them, so I've not experimented, but it's a thought.
I got some tubed petit edmundos and im thinking about taking them all out because its not a cap tube like chuck refered too. Rather it is two piece where it meets in the middle and seals.
Tubes don't properly seal; they both allow humidity in and out (thus tubes will never be a substitute for a humi), so, while you can take them out, keeping them inside the
tubos isn't a problem.