Hi lolabelittle.
Welcome to our Mattress Forum!
I am not sure how important innerspring zoning is in your personal value equation but Daytona is an InEuroring/Poly Euro Top mattress which uses 8" 'Quantum-Edge Bolsa’s Leggett & Platt coils providing an even surface using 16 ga encased coils and 15 ga steal edge perimeter. Flexus’innerspring is 6" with 3 zones encased coils with 15 ga center third support and 15.5 ga coils an older unit from Leggett & Platt.
https://uploads.mattressunderground.com/outside/66/Seethe3zoneBodyPrint.pdf
Zoning systems can certainly be useful and well worth considering for people that have more difficulty finding a mattress with the right “balance” between comfort/pressure relief (under the shoulders especially) and support/alignment (under the hips/pelvis especially) or who have more challenging circumstances or sensitivities, body types that are more difficult to “match” to a mattress, more complex medical issues, or who have a history of having more difficulty in finding a mattress that works well for them. There is more about zoning in this article and in post #11 here and the additional posts it links to but the only way to know whether any specific mattress (zoned or otherwise) will be a good match for you in terms of comfort, firmness, and PPP will be based on careful testing or your own personal experience.
The 1" of- HR 2.8lbs foam used in Daytona above the spring is one of the newer generation extremely durable high-performance polyfoams which is also more immediate in its response and would be a quality and very durable material. Depending on the feel you are after it may be worth considering exchanging the 1" HR Poly for Dunlop. Only you can really answer how you feel about latex or any other material. Each person has different preferences and the choice between latex and polyfoam and different budgets is part of each person’s individual value equation. There are many different types of mattresses in every category including latex so its quite possible that there are some you like and some you don’t and each could have a different feel and performance. The upper layers of a mattress are the most important part of durability because they are the most subject to repeated compression and mechanical stress and for most people (but not all) … they contribute more to the overall “feel” of the mattress as well.
The price point would obviously be another part of your personal value equation and I don’t make specific recommendations because only you can decide on the “value” of a mattress purchase relative to the other mattresses you are considering. There is a bit more about the 3 most important parts of the “value” of a mattress purchase in post #13 here which can help you make more meaningful quality/value comparisons between mattresses in terms of suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists based on suitability, durability, and all the other parts of your personal value equation that are most important to you.
Phoenix