Wow, small world!
I just registered to ask about the C&O myself but am hoping to go out on Sat/Sun near Harper's Ferry or Shepherdstown.
I've done a bit of backpacking but never incorporated the bike and am stoked to try it out! I figured that the C&O would be a nice and easy test plus the weather is looking really nice.
Good luck on your trip & please follow up with a post ride report!