One thing worth mentioning...
I had to revert to a backup file in which I had made some adjustments to the ball coordinates, but when I played a game I was getting liners to SS that looked like they were in the LF stands, stuff like that. After the game, I went to the park editor and saw that the coordinates weren't perfect, but they weren't
that out of whack. I made a few adjustments to them, and in my next game the locations were very close to where they should be.
That was strange. When I checked the coordinates after the first game , some of them were off, but nothing like a deep SS ball showing up in the stands. Then when I changed just a few of the coordinates (mainly the 4M and 6M ones, since at first I couldn't figure out where they were supposed to go

), I got accurate results. Maybe the initial changes I'd made didn't take effect until I went back into the editor... I don't know.