As many have said, I'd save your money and use it to take time off and get out in the woods! Your gear looks very dialed in.
Two nifty newish things you might want to try:
1. I think the Sawyer Squeeze water filter is a vast improvement over Aquamira. Weighs only 3 oz and it's a hollow-fiber filter that will give you way more bang-for-buck in the long haul, relative to both charcoal/ceramic filters and drops. Plus, you'll get to taste all that sweet mountain water for what it is--no chlorine flavor!
2. MSR is making Carbon-Core tent stakes; they are lighter than most titanium shepherds hook stakes, and they provide way better hold, too. They are pricy though. Sets of 4 are $30 at REI.