TQ and UQ design?

[Charliev]

I noticed when I was adding more down to my HG UQ that the baffels do not go to the ends, allowing the down to migrate between channels, TQ is the same way. The question and I know this has been asked and discussed, but anyway, and "why not sew the channels so the down stays in place"?

[Rain Man]

Down stays in place amazingly well, said having done two DIY KARO UQs.