You'll both do great!!!!
Just focus on having a good time, and let the cards fall where they may. You sound like you're VERY prepared shawnada- so you've done all you can and race day will take care of yourself. Don't sweat the stuff you have no control over (the weather and course conditions, flats, other racers there). Just have the race you're prepared so hard to do and you'll have a great time!!! At the du on Sunday four people flatted on the course and 2 went on to finish (the other 2 re-flatted and had to DNF). If you flat, change it and hop back on. For the 4 who flatted- others stopped to help so hopefully there will be the same camraderie on your course!

Have a great time, and I can't wait to hear all about it!!! (and you too, Northstar).