All that literature you see about their product are the case studies done by KCI. Read the fine print. They have very little literature about that drainage containment system, which by using gauze is all that it really is. You can't get the microdeformation with gauze. The secret is in the foam. And if you think about it, if gauze under suctions works then why haven't we been hooking people up to wall suction with gauze?
There are independent studies out there (some in previous editions of Wounds magazine) that compare Blue Sky and KCI. The results were not favorable for Blue Sky. KCI's system is much easier to use and you get great results. Also, a product is not cheaper if you have to use it twice as long. Plus their dressings can get expensive, with KCI you pay a price for a certain size, with the gauze you pay per package of gauze and if you have a whopper of wound it will surpass KCI in daily cost.