If it were me, (and I go from Courthouse to Tysons daily) assuming this is a westbound ride, I’d use the WOD until I hit Sandburg, then hang a right, cross over Idylwood, hang a left on Railroad (the roads don’t quite connect there) and cross over Gallows, putting you on Electric Ave.
Idylwood seems to be one of those roads that doesn’t get clogged at rush hour but rather has patches of clear road followed by bunch of fast moving cars, and not much shoulder.