Fujifilm stock D-rings
I tried using the triangular split rings (D-rings) that came with the camera, but the anchor link slid along the triangle side and made the setup feel clunky.
Peak Design oval rings
The oval split rings that came with my Peak Design strap did the job nicely, and I thought I’d solved my issue, but it turned out that in certain situations the ring could rotate to an awkward angle making the setup feel clunky again.
That’s when I realised that a wider knot (2) would prevent the anchor from sliding along the side of the D-ring, so I doubled the cow hitch loop knot to make it wider, reducing the chances it would slide from one triangle side to the other.
I was concerned that the anchor might not be long enough for a easy removal of the strap, but it works just fine.
Adding my unused Nikon protective ring caps reduces even more the lateral movement, and gives the setup a nice and sturdy finish.
Note: there is a stainless steel tube in the lug that can be easily removed, making the hole wider, but I don’t recommend going that route. That cylinder is there for a reason.