The simpler the "better-er" .

I like Chris' point of which one can be repaired in the field.

Regardless of which closure system one choses, I think it wise not to rely on any single thing to secure one's goodies.

Redundancy, redundancy, redundancy.

I pack my goodies as if I'm going hiking in the middle of the Gulf (of Mexico) with everything stuffed in ziplock baggies stuffed inside ziplock baggies, etc...

One can rarely have too much paracord ,duct tape, and ziplock baggies.