Hi jim,
Again … if I was ordering a latex mattress online I would order from one of the members here listed in post #21 here.
The pricing is better, the merchants are more knowledgeable, they offer the same materials (and more), and perhaps most important, they specialize in online orders and they often offer the ability to choose your layering or re-arrange layers or exchange layers so you can fine tune your mattress. All of them will help you make choices based on the averages for your body type and sleeping positions.
I don’t see any advantage to ordering a PLB online compared to much better online choices with more flexibility and better value.
I would also order a latex topper from other sources (listed in post #4 here) because the PLB topper is not the best value and they don’t offer the ability to choose the ILD.
Phoenix