I ripped seams (to make 6 longitudinal chambers), added faux baffles and added the down from a second throw (took it up to a total 13.8oz). Slept out at -7°C (19°F), started to get chilly tho'.
I have now added the down from yet another throw, it now has 20oz of down in it (extended it to 78" at the same time). The UQ calculator says it should be able to cope with -14°C (7°F).
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