Ray is a true believer in his product, however, you need to consider one thing - if down bags are so terrible, as he claims, why do people keep buying them and paying up to $1000 for them? Surely over the decades, down bags would have gone out of production as an inferior product as word spread about their inherent flaws and people stopped buying them. But, that has not happened because under most conditions, down bags are superior to symthetics. Maybe some day that won't be the case, but it is true for now.