Made my own masking the other day, i used roll up / roll down curtain hanger ( manually ) using 8"H felt cloth for my 115" in PJ screen ( for the upper black border only and i change the x/y height to eliminate the lower black).
And use the excess felt cloth for the screen wall. Now, the PQ and contrast is much better w/ less reflections from side walls. Soon will be the ceiling near the screen :P
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