Quote: (Originally Posted by Padowan)
So, I question why you decided to use layers, was is mainly to test for breakthrough/channeling (from a deteriorating pack), or WOB, which I would expect to be higher with a homogeneous mix, compared to a layered scenario?
There was a specific reason for layering, but I can't remember at the moment. Sorry...
However, I used a specific protocol to minimize (if not eliminate) loose packing on the Classic-KISS (learned from a friend).
I pack tight as usual, but have enough sorb so that I have about ~1/4" gap where the scrubber is from the lid. Since I have to drive ~2.5-3 hour to the dive site, the vibration packs the sorb even more by the time I got there. I simply tighten the screw on the top of the lid. I don't think I will be able to tap the sorb down much tighter.
On the Sport-KISS, the procedure is to use a looser pack.