So I want to start this off by saying I've really done a lot of work getting my pack weight down (40-45 -> 10). When I did the JMT last year I was at 10lb. or so with a big bear can. This year I upped my pack weight to about 12 with a can, 10 without to do both the JMT (again) and the GR-20 (another 2 week'ish route). The reason for this was mostly comfort, I can't sleep with closed cell foam so I went with a big inflatable, and I love my solong tent, things like that. I had some problems though and some unhappiness about UL items that I'd like to voice. Perhaps someone can shed some light on my issues or personal failings, or perhaps someone can get some understanding from my issues.
1) Shoes. I've tried La Sportiva Wildcats (last year). They developed holes in the outer toe area, which quickly spread out and ripped apart, by the end I was sewing them daily to get to the finish line. I loved their light weight and breathability. I was told by REI that I was an idiot and that those shoes aren't meant for what I did with them. Fine, whatever. This year I upped my protection with the La Sportiva Raptors which I thought was a fair shot at fixing the durability issues I experienced. I had a similar problem in which the sides developed a hole, then that hole spread. I didn't have to sew them necessarily, but ended up doing it for fear of further spreading. Also when having to jam my foot under a rock to get a hand hold, they got ripped open on top of the toes by a sharp rock. This was a bummer and kind of a freak thing, but I expected them to hold up to a sharp rock. REI again tells me I'm an idiot, but then has some sympathy when I say these weren't even used 400 miles. I think the uppers and the toe area need to be completely sealed off with more durable material, mesh doesn't cut it, and boy I've tried to believe it does.
2) Pack (SMD Swift). I've used a SMD Swift for about two years. The mesh keeps getting ripped up, part of it seems to happen when manuevering through something where the water bottle holders (with a bottle in them) scrape up on a rock surface. That's one. I also had the stays actually go through the bottom of the pack where the stay holsters end. They poked through the pack and began rubbing the crap out of my skin until I was forced to stop using the stays. Third when I first got the pack the plastic bits holding the hip belt rubbed welts into my skin, as there were sharp edges on them. Once I hand sanded the edges of those round it helped fix the issue. Fourth the "no sweat" back material sure didn't help the swamp effect on my back, this was a lot worse than my old Osprey Atmos, but I do realize the Atmos spent a lot of weight to achieve that using mesh and curved stays.
3) Ti Trowel (big dig). I liked this item a lot until it started bending backwards on use. I guess it needs to be thicker, or I need to use it for less workhorse digging (so not to uproot small roots).
4) Windpants (Montbell). I had expected to be able to sit on these, not on sharp rocks, but on wood benches, things like that. They quickly shredded on use, a tiny rip that cascaded into bum-less chaps.
5) Down jackets without windstop or cinch cords (Montbell). I really disliked mine because man, that thing is useless in even the smallest wind because it lets a breeze through. Pair it with a windshirt you say? I do, but it's a bummer to need to. The windshell is also needed to bring in the bagginess around the wrists and waist. Improper fit…. as it turns out yeah, but it's the right size, it just needs stupid cheap easy lightweight things incorporated into it (wrist cinch, waist cinch) to be so much warmer.
6) Quilts (Katabatic, but probably generic issue). I'm a fidgetty sleeper and that has let to some quilt problems. I find quilts wonderful when it's warmer out and it's easy to kick them off or drape them. The problem I have is when I really need that temp rating. I have an issue with any configuration tying them to my pad, because it lets air in, which can be fixed by making it extremely tight, in which case I can't move which just doesn't for me. If I put it strictly to my body, whenever I move air flows in and I'm cold again. I think I'm headed back to bags.
So those are my gripes from my experiences backpacking multi day treks these past two years. I have to say they make me want to buy boots, which I hate as they're swampy, a more durable pack, which I hate because it's heavy, and a better jacket. I think I'm over the windpants, though man did I love 'em back when they were pants. Trowel I think I'm okay using a more durable rock for scooping.

