You do realize that in 80-90% of the rides 1 person in front of you will mean nothing for actual line waits.
Haunted Mantion fits 3. So no matter what that party of 5 with that 1 person you didnt let pass you will use 2 with or without the 1 extra person. Small World, Test Track, Pirates, Winnie the Pooh, Peter Pan, Snow White, Tower of Terror, Teacups and much much much more are all the same.
There are SOME rides where it would matter. The Carrosel, Buzz Lightyear and TSM are the only ones that really stand out.
Space Mt, Big Thunder Mt, Splash Mt ect... are actually longer waits for larger parties sometimes.
I do realize this. I"m not really concerned that it may/may not make our wait even a few seconds or minutes longer. My concern is that those who want to ride the ride need to wait in the line. That's the way it goes. And, I'll say it again, what if EVERYONE tried to do this? There'd be people all over the place trying to catch up. I don't consider anyone special enough to not have to wait in line like everyone else.