mnoland,
I'm all for lightweight backpacking WITH comfort. Ray Jardine is the acknowledged father of UL backpacking when all others thought 40 pounds was a light pack.
SINCE Ray's books were published the backpacking industry has revolutionized the gear we use. It is possible to have a good sleeping bag, full length mattress, floored tent, UL canister or ESBIT tablet stove and framed UL pack and stay around 20 to 25 pounds for a 6 day trip. Much less than that weight and you begin to not be comfortable in camp or the trail.
Frameless backpacks, floor-less tarps, 3/4 length sleep pads, one mug "cooking", strapless hiking poles, all these "SUL" fetishes are (IMHO) just more about making an "SUL statement" than backpacking in comfort.
BUT... HYOH, i.e. Hike Your Own Hike. If you really like all Ray Jardine's ideas then go for it.
If not then join "Backpacking Light" online and learn from others' successes and failures about backpacking light IN COMFORT. I did beginning in 2005 and it changed my backpacking experience for the better. I sold or gave away my heavy traditional gear and got UL gear.
->Recently I bought a Tarptent brand Notch Li Dyneema one person tent. It was expensive but double walled and weighed only one pound 4 oz. plus 2 oz. of 4 MSR Ground Hog stakes. That's truly SUL for a 3 season double walled tent. It uses my Cascade Mountaineering carbon fiber hiking poles for supports.
->SLEEP SYSTEM- REI 3 season insulated air mattress (16 oz.) Western Mountaineering MegaLite down mummy bag
-> PACK-> Osprey EXOS 58 Large (2 lbs. 10 oz.)
->COOK KIT-> Open Country 3 cup anodized aluminum pot & lid, plastic drinking/measuring cup, Zip Loc bowl, Lexan long handled spoon, Brunton CRUX foldable canister top burner and canister or Trail Designs titanium Sidewinder Caldera Cone ESBIT/alcohol/wood stove. (Most efficient wood burning backpack stove ever.)
Those are my UL and SUL choices made since 2005.