The amount of sag I prefer in my WBBB is a bit more than what Brandon has designed into the BlackBird. This results in a bit of a droopy bug netting. Instead of shortening the structural ridge line a light weight, easy to install, multi-positional length adjuster was installed. See photo. Just couple lengths of chord attached by a Klemheist knot (Prusik type of knot) connected by a Nitz #1 mini carabiner. The adjustment thing allows for easy ridge line length adjustment, positioning anywhere along the ridge line and hanging stuff.