Throw out your pace charts. Seriously. The Blue Ridge Marathon does not respond to even-split pacing or any strategy designed for a course with normal terrain.
Shorten your stride. Stay relaxed. Walk the steepest pitches if you need to. You'll be running past everyone who sprinted this section when they're walking Peakwood at mile 19.
Run what you can. Walk what you can't. Keep fueling. Focus on making it to the next switchback rather than thinking about the summit.
The grade is steep enough that you will gain significant speed if you let your stride open up. Don't. Short, quick steps. The runners who bomb this descent will be walking the last six miles. The runners who control it will still have legs for Peakwood.
The greenway is flat. Do not try to make up time here. You are preparing for Peakwood.
Almost everyone walks at least part of it. The aid station at the top has champagne. Accept both the walking and the champagne.
Blue Ridge is not about time. It's about completion. Every person who finishes this race has earned it in a way that doesn't require a clock to validate.