Thanks, I'll add those sites.
I did read Michael's dissertation, and found it to be excellent. His work starts from the assumption of converting an experienced adult backpacker to ultralight, with rationales for why lighter weight packs is good.
What I wanted to make a shopping list for scout parents who are probably not at all knowledgeable about backpacking, to buy for young 11 year old scouts, starting with the most important purchase first, and working toward the least important. As a "shopping list", it is far shorter and easier to read than the dissertation, but it has the information needed to make purchases. It also has pictures, and is a lot more abbreviated than Michael's dissertation. The rationale for lighter gear for 11 year olds is so that their gear can fit in a small pack, and so the total pack weight can be halfway reasonable for an 80 pound scout.
I see a lot of parents go out and buy the wrong sleeping bag, and I wanted to prevent that first and foremost. Its money down the drain. Second, parents buy boots and packs that a scout can "grow into", and the kid has to suffer with a pack that the waist belt doesn't work, or the boots are loose or tight. I had one kid have to carry his boots for the whole trip, and wear his keen sandals, because his boots were too tight.