Difference in loft of different fill powers

[cmoulder]

My new 950 40* HG burrow looks transparent but is toasty warm.

Überlight quilts will spoil you for anything else!

[AmberG]

I used 900FP for my first quilt set and 850FP for the second. The 850FP down clusters were noticeably smaller, but once they were all sewn up in the quilts, I can’t tell any difference in loft. I used the UQ calculator and played around with the numbers to decide whether or not to spend the extra money on the higher FP this time. In the end, I think the total weight difference between 850 and 900 was less than an ounce, but a much larger weight difference between 7D and 15D fabric.

I think I still have a handful of the 900FP. I’ll post a pic in a bit to show the cluster difference in the 850 and 900 that I bought, along with an unknown FP that I pulled from an old comforter. It was interesting to ME, anyway!

[AmberG]

Ok, they’re not the best quality pics, but I think they show a bit of the difference. From left to right: mystery FP, 850FP, and 900FP. Both the 850 and 900 were bought from the same company.

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And a close-up of the individual clusters, w/ a quarter for size comparison:
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