16 makes it a 2 score game, then go for 2 twice.
I'm aware, but 16 is only a 2-score game if you get the 2-pt conversions. You could also go for 2 the first two times, then kick the extra point the last time (or go for 2 the last time).
This way, you get the information early on whether or not you can actually convert two 2-pt conversions. That knowledge allows you to manage the game differently down the stretch.
