I go to Paducah quilt show every year and I make it a point to chat with the winners about what fabric they use, what machine, what thread, everything that usually isn't asked about the quilt. I wait until no one is crowded around them and they all love to answer something not the same repeat over and over. Bobbin Genies were used by most when machine piecing on all brands of machines, even the top of the line new ones. I learned some fun things like the accidental hole in one quilt that the maker used the fabric repair as seen on tv to mend. LOL I've learned that show quilts are far different then regular quilts, anything that works and works perfectly goes.