I just finished quilting a minky back. The only issue I had was I kept thinking my bobbin thread was coming up. I kept adjusting the tension. It was a hot pink minky so I used hot pink bobbin thread and was using a white top thread. I kept thinking I was seeing a "candy cane" so I switched to a white bobbin thread but was getting the same look. I then discovered that some of my minky was coming up. Once I took it off of the fame and "petted" the minky all that came up went down. So just know that you might see some minky coming up.