Originally Posted by einTier
Just a thought, maybe there are less seats per bin in FC/FB?
Just thinking of my normal interstate travel, first class bins have approximately two seats per bin (one row, two seats), while economy has something approching six (two rows, three seats due to narrower seats and less space between seats). The bins hold what they hold, but divided among the passengers using them....
Another thought: When the bins are full in FC/BC, they are full, it doesn't really matter how many, or few, passengers there are underneath them, does it?