Did the ball hit the mat or not?

[hey blue]

I called a tornament for a league that used a mat to determine if the pitch was a ball or strike. All I had to do was judge the height of the pitch to be legal or illegal. I think I had more complaints about balls and strikes that day than I have ever had when I judge the pitches myself. I knew this was going to be a bad idea from the first pitch. Has anyone else had the joy of doing a game like this? Did you have any success? I made it through but I was glad when I was done.