Hi Reza,
Thanks for taking the time to write such a detailed account of your experiences. I certainly appreciate it 
Just to clarify as well …
All talalay latex is actually “pure” talalay because this is just the method used to manufacture the foam. Both the Talalay and the Dunlop manufacturing process can use natural rubber or synthetic rubber or a blend of the two to make the latex foam. With talalay … the blended is probably a little more durable and pressure relieving than the 100% natural Talalay in softer ILD’s … and less costly as well (see post #2 here for a comparison of blended and all natural Talalay).
Most of all … congratulations on your new mattress. I’m also looking forward to any ongoing reports you have the time to share.
Phoenix