Alan-
Thanks for your input. I have been considering the AT screen material from Seymour AV - they're in my neck of the woods in Ames Iowa (I'm in Ankeny). They seem to have designed their latest fabric to minimize most of the issues raised in the Mix article you referenced. I would appreciate your comments on the information in this link:
Seymour AV Screen Design and Tests. I haven't yet seen the screens in action, but plan to in the near future before I decide which way to go. I can make a 103.3" diagonal DIY screen for about $350, so it is attractive, but of course it has to perform.
