Interesting about the sides! Isn't left side usually FP and right side is standby? The only time I remember riding on the right side, recently, was after the ride had been down for a while, and when it came up they were just funneling FP people through both sides to try to deal with the backlog.
I never thought to see if there was a difference. I never noticed one, but it's been a while since I've sat anywhere other than the front seat!