I have been looking for a new sleeping bag. I need/want a lighter 3 season bag, ideally with down or a down/synthetic hybrid. I have been seeing bags on eBay that are mostly duck down. I have my doubts about the temperature ratings on some of them and the fixed/non-adjustable hood does not thrill me. I have noted that while the reviews are often positive, many note that the bags are heavier than high end models.
Does anyone here have any experience with them at all?