Here it is about a 50/50 split between Madeira Polyneon and the Coats Sylko poly. Both are 1 day shipping.
I do still use some Madeira rayon, but not as much as I used to.(greater weird color selection
we all have those clients that have weird colors for their logo) It used to be exclusively rayon, but poly threads have made great improvements from what they used to be.(15-20 yrs. ago)
Poly has a memory and it always wants to return to the original position after being stretched.