Hey Paul,
Sorry… I DID miss the post. I’m not “watching” the thread via email alerts and I’m on here as often as I used to be… very busy these days.
I should preface my answers by saying that I only got the bag this fall and I’ve only used it twice.
1. There doesn’t seem to be a lot of down in the bag… but I’ve never owned or even seen any other lightweight bags… so I don’t have anything to compare it to. My only other bag (I’m very new to backpacking) was a MEC Cygnet -10C bag with cheap down in it… power 500 fill I think. It was VERY puffy… but weighted a TON. I’m assuming there is enough down in there for what it needs to do.
2. Again… I can’t really tell about the down. But the construction seems top quality to me.
3. Never noticed
4. I’d say about 2 inches or so.
5. Not sure… been on two trips… 3 nights… I’ve never had it down to zero… probably more like +5C or so… it was plenty warm… never felt cold at all.
6. Boxers… socks and a long sleeve technical T with a hat on the colder night… nude in the summer.
7. I’ve never worn an insulated pullover with it… but if feels plenty roomy to me. I’m not a big guy… size 30-32 waist… 155 lbs… 5’7″… about 19″ from shoulder to shoulder… couldn’t find my tailor’s tape to measure around the full cicumference.
8. I’d say warm to normal.
Sorry I don’t have better answers for you… again… my experience with the bag so far is extremely limited. But so far… I love it… the only think I don’t like is the non-locking zipper.