Hi Ricool,
Thanks for the update … and as you probably know I think you made a great choice.
Congratulations on your new mattress.
While SleepEZ doesn’t have custom zoning available … there are some more adventurous souls that have experimented with cutting their layers into zones (an electric carving knife works well to cut latex) and purchasing softer sections and replacing the top part of a layer with a softer section (you could either replace the top third of the medium with soft or for a more subtle effect you could replace the top third of your bottom firm layer with a medium). There is more about zoning in post #11 here but I would only consider this if it was clear that it would help and there were no other options available.
Phoenix