I did a an 18 inning (over 6 hours) game playoff game as U1. Three things stand out from that game.
1. I wasn't scheduled originally. Got a call from the assignor that morning, I figured it would be a couple of hours.
2. Both dugouts cleared in the 5th or 6th inning, alot of posturing, no one ejected
3. In the bottom of the 7th (7 inning game), I had a banger at first base. Called him safe and he went to tie the game; if I had known