I have a decent amount of Ruxol remaining from my basement renovation and wanted to use it for bass traps. My room does have noticeable nulls so I figure adding traps can't hurt? The only space I have available is in the rear corners next to the back row seating. I have a space that is 9"wide x 16" long and 6ft high. My original thought was to build scalene triangle shaped wedges, but would a rectangular shape give me more absorption (in the real world)? The triangle shape would give people setting in the back row a little more elbow room but performance is more important and it isn't often we have people in the back row anyway.