An alternative method, the short pieces with the loop can be longer to change the pivot point of the harness and it’s easy to adjust, the strap slide easily. With the loop straps longer a weight pouch can be added behind the pivot point.
This 2” ring is pretty much all you need that you may not have laying around (x2)
This 2” ring is pretty much all you need that you may not have laying around (x2)