I typically carry around an 8-10 pound base weight. But like Nick says, it is not the base weight you carry, but everything needed for camping. My total pack weight (when I leave from a trail head) is will vary between 22 and 27pounds for up to two weeks out. Your TOTAL pack weight is what you need to carry.
And yes, it all fits into my old Murmur 2012 model for two weeks or the 2015 model for 1 week. The 2017 model is actually larger being thicker bodied(6″) than the older versions at 4″, though the specs have not changed. I typically use my 2012 model as a training pack, every day, at 30 pounds. With a partner, I use an old MiniPosa. The somewhat larger volume and weight carrying capacity means more conveniences on the trail. But, these packs are NOT for a a less experienced person. For a full two weeks out, I use a cut and fan-folded NightLite pad in 5 layers. Most packs out there do not let you do this, though several pack makers provide an option for it. A Zpacks Nero uses this, but you need to change out the elastic for a solid piece of tieable line. NEVER be afraid to modify the pack to meet your personal specs!!
You also need about 5 years of refinement of techniques and how to maximize use of fuel, water treatment and bodily hydration needs, knowledge of food density and pack-ability, knowledge of tarps/tents and how to set up various configurations, have adaptability to varying terrain, have smaller & light weight gear, and how to maximize warmth/weight at night and the things you can do to change these careful calculations to something more in your favor when (not “if”) it gets cold or wet, you run out of something or something “breaks.” Some knowledge of foraging, fishing and perhaps some rather illicit trapping could come in handy, but never count on these measures. All are parts of going UL for a longer thru. I would not recommend anything at 35L or less. And these only if you meet the above criteria and have some knowledge. No, not recommended for most hikers.
Cuben and various laminates are quite strong. They make good packs. But, they are also way over-done when it comes to light weight. This makes them *heavy.* The choice between capacity and durability vs strength for carrying your backpacking load is your decision. None of us can tell you one pack over another is “better.” ULA, MLD, and others all make good packs. With minor modifications similar to Zpacks Nero, you can add a support pad for loads up to 30 pounds. A support pad is also dual use for sleeping in summer, and, additional padding when it gets cold in Spring & Fall. Personally, I think of this as a requirement. With anything less than 30 pounds, pushing the load further from your back isn’t a real problem.
In all cases, fit is important. All packs have minor quirks in loading on your hips. All have differing widths of shoulder straps and the gap between them. Some even have load lifters to adjust how they sit on your shoulders. Or, adjust how they sit on your hips. Most people can carry a small or medium, or, a medium or large…only those very small or very tall people have trouble with overall size. But, do not be afraid to try different packs. All companies offer a return. Some will fit you perfectly after adjustments. Some will never fit. Again, your choice to fit your body.
A good starter pack would not be the Gorilla. I tried two of these and they were WAY over padded. While sort-of nice when you first put them on and for a mile or so, they can lead to a lot of problems with movement, both up and down and side to side leaving your hips and shoulders sore at the end of a hot day. Or, mod the pack to remove a lot of the excess padding, especially if you are in shape for hiking. Less padding (like 1/8″-3/32″) will be much better, especially on long trips where you will get wet a few times or plan a trip in bad weather. Removing 3/8″ padding and replacing it with 1/8″ padding will mean a much better and more stable fit. But, again, you might like all the excess padding…your choice.
I also prefer wide shoulder straps. I have packs with shoulder straps that measure from 2-1/4″ to 3-1/2″. I much prefer the wider straps.
Weight of a pack is very important. Any true UL pack will not weigh more than 16oz. Yes, you can go lighter. Commercial packs are available in the range of 6oz, but not at a 35L(~2200ci) capacity. This is useful for day hikes and long distance UL trips. UL is what seems to be your goal at 10 pounds. SUL means an 8oz pack or less. For lightweight, you need a 16-32oz pack. Many, if not most, pack makers are adding weight for conveniences to UL packs to make them more durable and easy to use. You can easily strip off a couple ounces of those things that are usually not used. Extra strapping, extra plastic, substitute smaller straps & clips for torso straps, eliminate unused adjuster points, remove unused “daisy” chains, etc. Again, do *not* be afraid to mod a pack once you determine the fit.
Anyway, Good Luck in your quest!