Well, for screens for 3D high gain is very desirable. I really like my Vutec Silverstar. It has high gain like the High Power, but is angular reflective so you can ceiling, or high shelf mount your projector, so people aren't constantly getting in the way. Maybe that is just my problem since my kids seem to have itchy rears and need to get up constantly. The silverstar isn't retractable, but is so pretty you won't want to. With my 2500 lumen Acer in 2D it is blinding. In 3D it is just right. Of course that is why I think a good 2D/3D projector needs a much dimmer 2D mode than 3D. The Panny and Epson are the only choices there, and I prefer the Panny's dimmer 2D mode and smoothscreen filter, but the brighter 3D, and better blacks in 2D, and much better warranty are leading me in the Epson's direction. Also I can always pick up another in the future and some SPAR linear filters and do passive.