Pad- you could save a couple of ounces and gain a bunch of comfort and warmth by going to a Thermarest Neoair
Water filter- ditch the MSR and get a Sawyer 3-in-1. Put it inline with your water bladder hose.
You're hunting- ditch the deodorant.
Shouldn't need bug spray at that time of the year in the mountains.
I often ditch the GPS, E-reader, and camera, and just bring my smart phone, which replaces all 3.
Tripod- the Summit is fairly good, but it's also quite minimalist. You'll give up some steadiness for weight. If you're spending hours on your spotter each day, you need to consider that a bit of a weight penalty there may be worth the sturdiness.
Pack- like your boots, a premium pack is worth the money. Check out the Paradox Evo or Unaweep if you want a lightweight, bomber hunting pack. Stone Glacier and Kifaru also make fairly light, awesome packs.
