To use the Garda Hitch with "D" carabiners, attach them to a sling or cord so that they are side by side with the gates facing downward and outward in the same direction. Then, clip the rope through both gates and loop the right side of the rope through the left carabiner. This will create a simple twist around the two carabiners.
To employ the Garda Hitch with "D" carabiners, attach them to a strap or cord so that they are positioned alongside one another with the gates facing downwards and outwards in the same direction. Then, pass the rope through both gates and loop the right side of the rope around the left carabiner, creating a twist between the two.