Good stuff, Michele-
Re #6 - I have found this too- when I don't use an underquilt. It's amazing how your top can be toasty and your under freezing! It's so much more comfortable to just use the bag as a quilt though. Imagine taking your bag and splitting it in half, and putting half below the hammock, half above. That's what you do (kinda) with two quilts.
my hammock gear weights total: 2430g (~86oz)
Winter: total 2521 (~89oz)
(see my profile for detailed weights)
gram counter, not gram weenie!