I just spoke with a Dalite Dealer regarding the new HCMW fabric. He stated that the new fabric is highly suseptible to wrinkles and that is the reason for the CSR requirement for the Model B/C. Even with the CSR, he said he still wouldn't be confortable using a non tensioned screen with the new material. The dealer is a very high volume dealer and I bought my Matte White Model B from them. Very sincere sales guy. Just thought you guys would want to know some comments from other people who have had experience with the new screen material. I'm going to stick to my matte white screen for know, until I can afford a tensioned screen.