Also as some of you may have heard Mark A, which we almost always use in our races has moved away from it's intended lat/long. The plan is to move it back, but this won't happen by tonight's race.
When RC goes out, we will determine its location and share that over radio (and I'll try to send another email as well) with its current location. This will allow you to update its location in your GPS's. My cell is 703-220-4973 if you have questions.