I don't see where it could hurt, other than taking up space you could put something useful in. I have 11 of the AMK/DR PSPs distributed between 4 BOBs, 4 GHBs, 2 Packs, and one training kit. All of the aforementioned kits but one are still stored in the original pouch, and none have had a condensation issue.

Might the space be better used for some Katadyn MP1 tabs?
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I do the things that I must, and really regret, are unfortunately necessary.

RIP OBG