With some quilt makers offering an overfill option on their down quilts, I am curious as to the exact effect this may have.
Just an example....
Stormcrow over at Hammockgear.com offers up to 4oz overfill on his winter quilts.
On your average quilt, does the extra down equate to increased loft? Or better insulation at the same loft level as the base fill level?
I'm shopping for a winter quilt, and just trying to make sure I understand the facts before I start peeling off the Benjamins!