Wow! Thanks for the wealth of information!

I would have never thought to warm up more - I honestly thought that I shouldn't warm up for more than 3 or 4 miles at a really easy tempo.

And you're probably right, I had just bought my computer and 19 mph is still faster than what I was planning on going anyways.

I didn't end up talking to anyone, I got there pretty late and I was spending most of the time in my car trying to keep down my breakfast - first time jitters perhaps?

I will definately go out to the Meet the Teams ride - it seems that there's more to time trials than I realized.