Undo the button hole on your strap and thread the end of the strap through the side of the weight distributor that doesn't already have the strap going through it (the side that sits on your shoulder). Keep pulling until the little button that you do the button hole up on is sitting in the part where your shoulder would normally be, facing upward. So you've now threaded your strap end through both slots on that side. Pull the end of the strap over end of the weight distributor and do it up on the little button, then slide one of the little pieces of leather that holds the strap tidy over top to secure it. Does that make sense?
omg, you are awesome! crystal clear. thanks so much for taking the time to explain