Hello,
Marmot has been making down products for 28+ years. Remember the Eiger Sanction? Marmots first big order was making 108 puffy down jackets for the movie. I do work part time for Marmot Mountain Ltd, so I can share what I do know.
Most of our down is sourced from eastern Europe, primarily Poland, from 2-4 yr old geese. Most of the down that comes from asia is from young "immature" geese usually not over 16 months old. The European down provides the high quality fill down.
Marmot does test down out of every 16lb bag of down that we receive from our supplier. This testing is done in-house at Santa Rosa, Ca. - I have seen the down testing room and the test results.
Marmot also sends samples to the International Down and Feather testing laboratory...yes there really is such a place...located in Salt Lake City. The IDFL is an independent testing company. I have their test results on paper as well.
The results from both tests are then matched up to ensure and verify that the down fill power is what it is claimed by the supplier and by Marmot.
Believe it or not...but there isn't a "goose-down Cop" writing tickets to companies because their down fill-power isn't really what they claim. Anyone (ie. company) can claim their down is "XXX" fill power and not be held legally accountable.
Marmot consistently tests to uphold our standards for quality...not someone elses. Every 800 & 900 fill bag from Marmot has a certification tag with a # on it that matches what batch of down the bag was filled from. Marmot also doesn't bash other companies for their claims...but we can certainly verify our fill power from an independent tester and our own in-house tests.
Just thought some of you folks might be interested in our process of bags and fill-power.