First "LIGHT CONTROLLED" means no white reflective surfaces like a white ceiling. If this is not the case then it gets very complicated. Any screen above a 1.3 overall gain has the possibility of introducing hot spots and sparkles. If you love movies and you have a capable projector why not a 2:39 scope screen?
"Smart enough to know better, to old to care" ------ Dedicated Bat Cave Home Theater, JVC RS49U/Mitsubishi HC7900DW Projector, 110" 16:9 Jamestown screen with variable power masking for CIW 2.50:1 to 16:9, Marantz 7009 with 7.1.4 Atmos with Ohm mains,3 DIY Subs (2 15" (1 ported, 1 sealed and a 12" 4th order bandpass), 1 DIY butt kicker, Custom Built HTPC, 18TB DroboFS NAS