Does orientation of OC703/5 affect performance?

Meaning that if it’s absorbing sound at its edges/sides as opposed to at its broad front face, is there any real difference?

I’m filling joist bays with 8” of 703 then 2” of 705 as the outer layer. I can install the 703 so it’s parallel with the joists or so it’s perpendicular. Is it even worth considering if there is no appreciable difference?

Any expertise and knowledge are appreciated. Thank you