Originally Posted by BellaBoo

I have a Bernina, Janome, Brother and new and vintage Singers. I can use all brands of thread in any of them. I think the right size and type of needle is the key. When I was test sewing on the new Bernina, the thread used in the shop on most of the machines was Signature cone thread. Some of the other models of Bernina had C&C thread on them. The shop owner sold Aurifil, Superior and other brands but she didn't use them for testing sewing on her shop machines.