Dustin Meeker gratefully brought this to my attention and I thought I'd share the Strava activity showing my successful attempt at establishing a new FKT for the four state challenge. I completed the run in 7:19:24. This was a supported attempt, aided by two other runners along various points on the route (Pogo to Taylor's Gap and Harper's Ferry to the Va/WVa border). I ran approximately 65% of the route solo.
I can't wait to see what Dustin does on Saturday (or later this month)! I'll share a more in-depth report shortly with additional photographs.
Here's the report from my run on 7/3/17. I hope others find it useful. I think this FKT is going to be below 7 hours before the end of the year.