Of all the recent super bowls that I can think of, this one has to be the hardest to handicap. Both teams are quite capable of scoring a lot of points in a hurry - no lead is safe. I'm attending a SB party hosted by an old college friend who lives in KC, so I'll be rooting for them, but as far as putting money on either team, I'll sit this one out.
I am considering putting a 20k trimmer pot in place of the 13k resistor to allow the meter sensitivity to be adjusted. It's kind of gee-wiz, but when you're an engineer, it's what you do. Remember, better is the enemy of good enough and no decent engineer ever thought they were finished - let's try just one more thing...