Test out the blue pad on a hard surface before your trip. I find the Ridgerest much more comfortable.
I use a sturdy and long stick to dig cat holes. Rocks with an edge, trekking poles, and tent stakes also work well. This is my experience in Eastern US forests.
I think you'd enjoy a lighter pack, and using something like a plastic Gatorade bottle would save a few ounces over the Nalgene.
Add a pealess whistle, topo map, compass, and sunglasses. Lighters do fail sometimes, so having a second one, matches, or a firesteel as a backup is a good idea.
I'm not familiar with the temperatures and terrain you'll be in, but you'll need a minimum of 4 quarts per day ***(edit: per person)*** beyond what you use for food prep and washing. See if you can cache some water. Talk to national forest staff and see if they have ideas for how to obtain water or access routes for caching it.