I will always use Mettler silk finished because that is what the dealer told me back in the 90s. You have to realize the truth, polyester did cut thru quilts in the 60s. I saw it happened. But the quality of mono-filament has improved over the decades so it doesn't feel like fishing line in a quilt anymore. So I can only assume that polyester thread has been improved too. I want my quilts to last for generations and be on the Antique Roadshow in 2252.
