Hi folks, Is anyone here using cold (or hot) aisle containment round their server racks? We're looking at something like the Knurr ColdFlex stuff (I know other vendors do it, theirs was the easiest URL to find) http://www.knuerr.com/web/zip-pdf/en/coolflex/Knuerr-CoolFlex.pdf if so, what are your experiences with it? Many thanks Andrew