Hi Pengel,
That’s what I guessed so I’m glad I gave you the right link. It would be a preference choice yes
Their Talalay latex is a high quality and very durable material and they are one of only two manufacturers of Talalay latex in the western world. Their new name is now Talalay Global. There is also more about the different types and blends of latex in post #6 here but latex of any type is among the most durable materials in the industry.
Foam Source make some very high quality mattresses that can be customized for your firmness preferences and if one of their mattresses is a good match for you in terms of PPP (and they also have a 60 day comfort exchange if your mattress is too soft or firm) and it compares well to your other finalists based on all the other parts of your personal value equation that are important to you then they would certainly be well worth considering as a final choice.
Phoenix