I like hearing/giving start times too, but it is only useful information for the first leg of a TAT. After that it's pretty much irrelevent. Sean, even if you knew the start time of the other pilot, you would have no way of knowing how deep he/she went into the last turn point, so when you were flying neck and neck either one of you could be way ahead of the other. It's often the last pilots to land that win the day...

Matt