I have been going through this process this past year and have slowing been whittling down my gear to one of everything. If I didn’t go out in winter I would be there, but I really enjoy the few winter trips I take and don’t want to give them up. To accommodate winter trips I have second quilt - Katabatic Sawatch , a second pad – Kookabay DAM, and a second stove – MSR Whisperlite. I picked up a Neo Air All Season that I am hoping will be comfortable to 0f and if this pans out for me I could get down to one pad. I have only slept on it one night in the backyard and it wasn’t cold enough to really test it. It is significantly warmer than my Exped UL7, not quite as comfortable in terms of rolling off the pad when you get to close to the edge, and the crinkly nature of the pad may take some getting used to, but at this point I think it will be replacing my UL7. BTW, mine is a medium nearly 75” long, and weighs 19.2oz. The only other info I have seen is Ray Estrella’s review of the large on backpackgeartest.org that was longer and a bit heavier than stated as well. My three season pad needs to be solid to the teens and my UL7 only worked for me that low if I supplemented it with a ¼” CF pad netting a R 4.1. The combined weight of the UL7 and the CF pad is 22oz, and while it offers some redundancy if I spring a leak, the NeoAir All Season is almost 3oz less and has much more robust fabric – 70d vs 20d.
Pack - SMD Swift ’10 17.5oz - Simple, comfortable, and able to hold 12 days worth of food.
Bag - Katabatic Chisos Wide w/2oz overfill 19.1oz - I very recently purchased a wide 900 fill version and my regular with overfill has gone to my son. Worth every penny.
Pad - Neo Air All Season 19.2oz - Only one night on it but so far so good.
Shelter - SL3 ’11 24oz tarp only - This is my second one and while there are lighter options, I love the strength, space, and versatility. I have a custom solid inner for winter and a net bivy for summer. This is rarely taken as I mostly hike with a friend that brings the tent for three season use.
SD Gnar Hoody 13oz - Light, warm and sized to fit over my down vest. This is pretty much a winter item.
FF Hyperion Vest 6.5oz - Super warm and supremely light. Rarely gets left home.
WM Flash Pants 6.5oz - Super warm and supremely light. This is pretty much a winter item.
Golite Poncho 7.5oz - Modified to a Caffin like packa.
Houdini 4oz - Where has this thing been all my life? Hands down the best windshirt IMHO. Sized to fit over the Gnar Hoody and extremely weatherproof for what it is.
Wild Things EPIC wind pants 5.5oz - Nearly “waterproof”. This is pretty much a winter item.
JetBoil Sol Ti 10oz - Fast, convenient, and no messing around. Yeah, I am getting lazy.
Snowpeak Ti mug and spoon 3.5oz - Not much to say…..They work and I like them.
Steripen Opti 4oz - Fast, convenient, and no messing around, waiting, or carrying excess water weight.
4Sevens Quark Mini123 flashlight 0.7oz w/o battery – Tiny powerhouse with 210 Lumens and shares batteries with the Opti. Several modes and settings. MYOG headband and total weight with battery and band is under 2oz.
That pretty much covers the items where multiple options have been eliminated or reduced to a choice for 3 seasons and a choice for winter, which for me is down to about 0f in the tent.