Thanks for the reply Phoenix. Things have been a bit busy of late, hence the disappearance.
Was able to spend a more considerable amount of time on a Tempurepedic Cloud Luxe at a local Macy’s. Definitely gave me a better idea of what memory foam feels like, but was not ideal for my PPP. Additionally was not thrilled with the lacking springiness and the difficulty to move around. That said, I think I will focus my attention towards latex.
I’m in the DC area and made use of your list of retailers here. I did take some time to go to the American Foam center. The price was a bit high for what I was looking for, but they did provide a good reference to use. The lowest ILD foam they had on hand in a mattress at the time was 36. It was fairly comfortable, but I could definitely see myself going softer for more pressure relief, especially around my shoulder.
With all that said, the online options are looking much more favorable to fit my needs. I have finalized the list to Brooklyn Mattress, Ultimate Dreams Latex (which to my understanding is under the same management), Kiss, and Love Bed from Nest. The construction and return policy across the board are similar. That said, the Brooklyn Mattress sticks out due to the current track record that is available on the site. I figure my best bet is to speak to someone there and help advise me on what firmness option would be suitable based on their customer feedback.