Thanks much for the input.

I have a Dana Designs Raid Z pack. The pack is just a strap on carrier for a 50 liter dry bag that is basically the main sack, and it has two other pockets. My question was primarily driven by the realization that putting wet gear into a big dry bag, even using sacks inside, made no sense. My current thinking is that I'll build a mesh "taco" to wrap a bunch of much smaller bags and then get wrapped in the Raid Z. The small bags will range from a dry bag for the "MUST stay dry" stuff to mesh bags for the wet stuff.

I guess my thinking is that there's so much wet stuff (this is the PNW) that having any pack bag at all doesn't make much sense. Has anyone else tried a pack like the Raid Z?