John Spinney posted the route, with a Strava segment to track the FKT.
While this is a short test it packs quite a punch. I'm not sure it even counts as something worthy of an FKT but I'm going to share this. Last wknd i ran hard up the steeper more technical side of the Pinnacle in Stowe, VT. Since not everyone uses strava i'd love to know what others have put up. The link is below. This is from the Stowe pinnacle parking lot. From the meadows parking lot i think sub 20 minutes is doable as the first half is not as technical and more runnable.