Thanks for all the great comments guys. Sorry its taken me so long to respond, but I got back to work on the Monday following the trip and the next day I was on an airplane to England! So that's where I'm writing this from.
Everyone is right, I wish I was still on the road as all this one did is make me want to turn around and go right back out. It was awesome seeing the country w/o either looking down on it from an airplane or through a sealed-up car. We did a lot of planning before we left, and we learned an awful lot about what we did right and wrong. Now I know what all of you folks have been trying to tell me in all your posts and the excitement you felt in your rides.
As far as the couple of questions I got, yes I did it on the stock seat. I guess I'm lucky in that I must be a 3-sigma guy on the stock Harley seat. It was comfortable enough on the ride. We took a huge variety of roads trying to avoid the interstates where possible.
One of the most emotional things for me besides actually being at the 911 sites, was in all of the small towns in Pennsylvania, Maryland, Virginia, Deleware, and New Jersey we rode through, it seemed all of the citizens were on the sidewalks, even in the pouring rain, waving American flags and holding signs thanking us! It was like what the heck, we're honoring the folks that did something special, we're just riders. The same was true on the overpasses on the highways we took to Arlington and NYC. People and the Fire departments would be parked on them waving and running the sirens. People on I-95 on the southbound side were even pulling over, getting out of their cars and waving and watching us go North. Even the supposed cynical NYC residents were friendly and patient and generous as we clogged up West 52nd and 7th Avenue in Times Square to park our bikes.