She told you that because the shop doesn't sell that thread. Dealers will tell you not to use anything they don't sell. Use the thread that your machine likes no matter what brand it is. My Bernina sews great with all brands of thread.

I agree Prism. Exact same question and only 3 total posts from this person. What's up?

So a post is a duplicate, why would it be an eyebrow raiser for anyone? It's easy to get double postings when you are new to the board and trying to learn how it's done.

Same here...its the only thread i use, cant beat the price, and i have never had a problem in my Bernina

I recently went to a demo on the Bernette Deco 340. The Bernina rep said the same thing about using pre-wound bobbins! She said the machine winds them at the right tension. The pre-wound bobbins may or may not be wound correctly. In fact, she told me that if you take your machine to be serviced and they find out you're using pre-wound bobbins, they may void the warranty!

Interesting, especially since Bernette is not made BY Bernina...they're made FOR Bernina. To the best of my knowledge, Bernette sewing machines are actually manufactured by Janome while Bernette sergers are made by Juki.

I think that the only thread you should not use in the machine is hand quilting thread as it has a coating over it which interferes with the tension discs. Try out any thread and make your own mind up is my view. I use everything except the really cheap quality as it annoys me when it breaks often.

http://www.quiltuniversity.com/difficult_threads.htm

Perhaps the sales person was referring to the way the thread is wound at the factory and which way the machine holds the spool. Check out the link second paragraph about how spools are wound.

When I purchased my Bernina 18 years ago...they told me not to use anything but Sulky thread in it. I cannot use that thread it breaks and breaks and breaks. I use anything else without a problem. I guess one problem is supposed to be the lint of the thread will collect under the plate, but I clean regularly and have never had a problem.

I use ET on my Pfaff with no tension problems. It is very linty though and I have been gradually shifting to Aurifill. I use it only for piecing, it doesn't work well for FMQ.

If you like it and it doesn't cause tension problems, use it. I was told the same thing when I went to a class on my new Pfaff. I have ignored their advice and have used what I had at home.