That's funny, because QD wool is my favorite batting. I use a longarm with a brand new needle, though, and don't get bearding. And everything is prewashed. The latest quilt I made has a wide backing which was prewashed. I love how warm (but not hot) and lightweight the quilt is. I also like QD Select cotton. For me, the QD Request batting is too thin. I also used a bamboo batt once, liked it. Have never used silk.