Have a question. I need to hang my Draper Linea from the ceiling and I have no access to from above. Weight wise I think it's about 40kgs. Joists run in parallel to the way the screen will be running. Looking at the diagrams the ceiling mount ears have 5mm screw holes. Can 4 x 5mm screws really hold this up? Options as I see them: Drill out the 5mm holes to 8mm or similar and use a single M8 x 100m coach bolt on either end screwed into the joist. Would two coach bolts be strong enough assuming I hit centre joist? Span two 10mm thick steel bars between (under) two joists (one on either end of the screen). Each end of each bar would be coach bolted to the joists giving me 4 bolts in total. The screen ears would then rest on the bar with maybe a small 5mm bolt holding it in place. At least with this method I could raise or lower the coach bolts to ensure each bar is exactly level. As with #2 above but use a 4x2 noggin and the 5mm screws through the ears into the noggins. Appreciate any info on how people hung theirs.