Hi barneycalhoun,
While I appreciate your willingness to assist TalkingDog, I had to make a few adjustments/corrections to your post.
Your link to the three zone bed description didn’t go to such a page, so I deleted it, and I had already posted about zoned mattress construction here and zoning in post #11 here . Also, your link to piece of zoned foam was too promotional so I edited that out as well.
In general, Dunlop will compress faster thank Talalay for the first 25% of so, feeling a bit softer, then it will firm up faster than Talalay with deeper compression, Of course, this also all depends upon the completed mattress and how all of the layers work together. You can read more about Dunlop (of either type) vs Talalay latex in post #7 here.
This is simply an online layer selector for a SleepEZ mattress, ant not a tool for general mattress, or zoning configuration and again was not germane to the original questions of the OP.
While I certainly don’t mind you posting on the forum, it would also be helpful if you could post more accurate and “educational” information that has some facts behind it and is specific to the OP questions rather than the type of “broad brush” opinions that are rarely accurate or helpful.
Phoenix