Also, I see some people using only the top 51, and rollover money along with existing dead money. While I'm amazed and greatly appreciative of that, we don't go to that length due to the learning curve of the game. It was tried last year, and... it didn't exactly go swimmingly. Perhaps in the future with enough people playing continually who grasp it that will happen.
Probably not the top 51 rule though because then people will hoard players.