Hi terra_422,
Just in case it’s helpful … there isn’t a lot of difference between the “feel” of blended and 100% natural Talalay and most people wouldn’t notice much if any difference between them.
There is also more about the difference between 100% natural and blended Talalay in post #2 here but Spindle is using Radium Talalay so there also shouldn’t be any significant difference between them in terms of durability either.
I don’t think you could go far wrong either way 
Phoenix