Have you tried samples of both?
That screen is not very large and with that projector it looks like your FLs will be in the 40s depending on your throw. Plenty for HDR in that room.
It looks like the ST100 would be plenty but maybe check with someone who has tried both or get samples yourself.
That screen is not very large and with that projector it looks like your FLs will be in the 40s depending on your throw. Plenty for HDR in that room.
It looks like the ST100 would be plenty but maybe check with someone who has tried both or get samples yourself.