Hey there OC,
I'm not a sewing guy for two reasons:
1. Minimus might shun me.
2. Been too busy making a living, being a JW and raising kids.
I actually sent off for a kit for a backpacking quilt from Ray Jardine but never got around to actually making it. Maybe when the kids have flown the coop I'll do it.
In the meantime, here's an essay written by Ray Jardine that I think you might enjoy. He's kind of the Grand Daddy of ultra light backpacking. Sorry I can't post the content directly. He's got his website set up to prevent cut & paste.
http://www.rayjardine.com/papers/why-sew/index.htm
I'd be curious about your take on it.
Best regards,
om