Hey takoma!
4-8? I can make it, but would have to leave early....is it still worth the first couple of hours? Or is all the excitement at the end?
(Hope this isn't a double reply)
Early or late is worth it or any time in between. You never know who is going to be seen and when, so the whole time is one of watchful anticipation.
TGSL - I assume you all( a little Southern lingo there) will be at Walter Reed the night before?