Originally Posted by KurlonT
Would a 92" Firehawk G3 or SST be a good fit for a HT setup in a finished attic that has lighter pitched walls/ceiling? ...
Well, you have some things to consider for sure. The Firehawk G3 is great for controlling reflections to a close ceiling or side walls as well as rejecting light from side angles. It would work well with some ambient light like a lamp not pointed directly at screen, a semi-dark room, or lighter walls.
However, it is not recommended for very close projector distance (I believe 2X screen width is best) as there will be some hot-spotting. So, you may be pushing it a bit at 12.5 ft. It also depends on how wide your seating is as well.
How close your screen is mounted to the ceiling will also affect how much reflection you will notice. This can be quite annoying if you keep your ceiling light colored. However, this is certianly cut down by using the Firehawk. Note the projector must be mounted close to the top of screen (or higher) and the screen has a specific up and down side.
If you can paint the ceiling, I found that a dark blue (like a midnight blue)works just as well as black. I have had both. Possibly other dark colors would work too. Good luck.