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Is there a formula?
My goal is a quilt with 1.75" of loft. I'm not entirely clear on the relationship between baffle geometry and overfilling. I gather 30% overfill is often recommended, although Thru-Hiker just today suggested no more than 15-20% in the 800 activ-dri feathers.
Can I aim for 1.5" baffle height, max 4" baffle width and stuff amount for 1.75" – 2" loft without adding 30% overfill?
I'm not sure this was covered elsewhere exactly, I apologize if so!
"Can I aim for 1.5" baffle height, max 4" baffle width and stuff amount for 1.75" – 2" loft without adding 30% overfill?"
Yes. 30% overfill is a lot really and is often used to overcome a poorly designed baffle(like a wide KARO baffle). Industry standard is no more than 5" of baffle width, with a smaller number having more down control, but also adding weight & complexity. Worth it IMO though. Most people still add 10% overfill just to cover any fudge factor, loss of loft due to washing, etc.
Ryan
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