I used the GG Murmur '12 (lighter version of the Kumo) last year for most of my trips. I can pack up to two weeks of food in it (one bag of food.) So, here is how I do it:
1)I use down for a jacket and for sleeping. It is very difficult to find anything that packs smaller for the insulation. I use a 40F bag, but suplimented with the jacket, this is good to 32F for comfortable sleeping. I always use merino wool "sleeping" cloths to keep things as clean as possible. A mid-weight merono wool set will let me take this down to about 25F and still fits in the pack. Using a small compression sack, I put everything for sleeping together, compressing it. Do not worry about hurting good down by compression, you won't. But, you do need to spend about 1-2 minutes shaking the bag and jacket out to get them to loft. Most of the time spent on the trail will be compressed, try not to put a damp bag/jacket away. I also use heavy wool socks at night sized larger than I would wear for boots. Note that most of this gear ('cept the bag) can be worn, too. One bag in the bottom does it. This weighs about 3-4 pounds depending on the weight of my long-johns.
2) Using high density foods and what not, I get my food weight down to about 1.2 pounds per day. I plan on 1 pound. Then add some extras-hard candy, spices, salt, etc. to make up the total. For two weeks this works for me. All in one dry bag, again in the pack...just about filling it. I still have some room, but likely not enough for another sack.
3)A small K-Mart grease pot, is stuffed with my ditty bag/rock sack. This has an old bandana, pills, a small piece of blister pad, ~5 yard of duct tape, bear line, some fish hooks (3), superglue, a spare lighter, batterys, small e+light, AquaMira, etc. it usually caps the end of the food dry bag. The pot lid, (flat, edges filed and smothed, then dished slightly) slips behind everything along with the spoon.
4) I don't use rain pants. So, my rain jacket just slips in the outside mesh pocket. Along with my sweater, a 120z soda bottle of WG, camera, log book, WP maps and daily foods.
5) The left hand pouch has the SVEA 123 w/cup, a windscreen, and lighter. The right hand pouch has two .5L water bottles. I also carry a smaller, 1.5L platypus for longer dry marches. In NY, this happens rarely...mostly at the tops of the hills.
6) My 5 piece pad is packed in the pad pockets in the pack. This makes a very stiff, yet torsionally flexible frame for up to 25-30 pounds. And, it doubles for sleeping.
7) I use a 14oz tarp. After adding lines abd stakes, it is right around 16oz. This is rolled and folded over the top of the gear in the pack body. If it's wet, sometimes I stuff it in next to the svea and drape the other edge over the net front pouch.
On the NPT, the total weight was 22 pounds. For the St Regis, it was 24 pounds (fishing gear.) For the Oswagatchie River (using a Miniposa), it was 23 pounds. I have been using the same system for close to ten years. Those were typical weights for trips lasting from 10-15 days. Mostly, changing out gear to save weight, then adding luxuries back in.
A lot of stuff I am glossing over....