ben i play now the last 4 days till early mornig every day with the units
and my family need me back.
i have the plan to measure light out in max. long throw may in between as well and i expect a huge
light drop in the bigger than 30% range.
lets say its 35% than the 1300 lumen at your 7.2 qm screen at 1.3 gain will have around 21 ftl so not any problem at all.
even with 30% lamp down you have almost 15 ftl!
thats for 2d.
in 3d that will be dim but ok i guess.
lets wait for my numbers but dont know today or in few days....