There are screen companies which promise no hot spotting on their optical screens. Examples:
1) http://www.skylinescreens.com/tecnologia/ 2.5 gain
2) http://www.ssidisplays.com/front-projection-screens/reflection 3.0 gain
3) http://www.spyeglass.com/downloads/Front-Projection/ISIS-2012.pdf 3.0 gain
These screens are intriguing. I'm thinking of ordering samples.
1) http://www.skylinescreens.com/tecnologia/ 2.5 gain
2) http://www.ssidisplays.com/front-projection-screens/reflection 3.0 gain
3) http://www.spyeglass.com/downloads/Front-Projection/ISIS-2012.pdf 3.0 gain
These screens are intriguing. I'm thinking of ordering samples.























they said it's so new they don't have any pictures yet, but they will send me drawings.