Is the Seymour AV company different from the Seymour Excellence brand? I was looking at options for ambient light rejecting screens. I'm waiting for a quote on the DNP Supernova. I came across the Ambient Visionaire and the it seems to have decent review on the accucal screen report. However they mentioned sparkling which is what turned me off to black diamond. I'm curious what owners of the screen say. Also I couldn't find any reviews of the Seymour AV matinee black: image quality with ambient lighting, shimmering/sparkles, etc.