I believe the link you were recommending BostonMatt see is setup wrong. In post #2, where you write :
… roughly correspond to the density (see post #2 here as a reference). ILD ranges with Talalay …
The link I get when I hit ‘post #2’ goes to a page to reply to this thread. I think I know the post you’re wanting to point to even 
I believe this is the post you meant:
https://forum.mattressunderground.com/t/likelihood-same-dunlop-product-is-labeled-differently-by-ild-and-firmness
Feel free to delete this post of mine if you correct, or if I’m in error. (Or let me know and I’ll delete).