I am considering buying a Bernina 1030. When I tested it, it did not sew well with a twin needle. At best, the bobbin thread did not show a neat zig zag on the bottom. At worst, the bobbin jammed. I am hopeful that with more trial, I could make it work, but I’d like to know that people use a twin needle successfully with this machine. Do you? Do you have any tips to suggest? Thank you!