I have an older Bernina 1260 and it uses all types of thread just fine. I use mostly Aurifil thread because I bought a case of neutral light and dark colors on big cones from Tristan Threads at clearance price several years ago. I'll never use all that up! All newer threads are manufactured better then they use to be. The Bernina dealer here that has Berninas set up for her classes uses the big cones of no name cotton thread on the machines. She sells all brands of thread and doesn't push any one brand. She will tell you which thread is considered the best for what sewing you are doing and you decide which brand you like to use.