Differential cuts come into their own when protection below 30* is important...At 30 * and above traditional flat quilts work fine, are easier to make and cost less. Also this approach readily supports multifunctional designs as well. Please re-read WV posts on the value of flat quilts in use, for testimony on this point.
Moreover, the differential cut is only half the design multiplier... The real benefit comed from body contouring radial baffles...Differentially designed UQ with straight or straight baffles with trimmed ends only do not perform as well as differential cuts that incorporate this second feature. Again thes designs are most valuable when planned for colder weather.
PS added back in the days of the original Differential Designed UQs...The Speer Snug fit (no longer made) and the JRB Mt Washington 4 UQ, it is worth noting the Mt Washinton UQs were designed fisrt with the zero degree capability to optimize the value of cost to use... Only later were the Mt washinton 3s and eventually the fractional Mt Washington design paralleled Greylck UQs.
Ounces to Grams.
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Under Quilt, and Bear Mountain Bridge Hammock.
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Last edited by Peter_pan; 02-27-2013 at 10:42..