I've now had to cancel the first leg of a flight. I was able to do it but I had to talk to supervisor and she said she was doing it because there wasva schedule change (about 10 minutes).

The explaination I got on the phone didn't match either my understanding or the words on the web site. I was also told that if the fare was less than the $99 change fee the fee would be reduced to the fare. I'd never heard that before.