Yes I did notice that after reviewing carefully last night.
It seems though that high quality blended talalay may have some advantages over natural… I read up on it here.
My thinking is with a 4-layer product in blended - which FSF doesn’t seem to offer even though it has some durability benefit… That not only does 4 layers (S-M-F-XF) give me flexibility, but it would allow me to easily (and relatively cheaply) buy replacement S and M layers to extent longevity.
One of my only remaining (slight) concerns is the 2.8" vs 3" layers between EZ and FSF. Found a little dialog about it here. I’m spending more than I need (13") not because of my weight, but because of longevity of the overall mattress and a good degree the flexibility. The loss of 0.8" in one (completed) product over another concerns me slightly, but in the end 13" is overkill for me anyway. Plus I’d have to go with FSF’s fully natural product which (apparently) works against durability at least slightly.