Janome Horizon 8900
Has anyone had trouble with the Janome 8900 tearing thread and skipping stitches.
I had it in the shop 3 times, they tell me nothing is wrong, just have to use the right needle. First it was needle # 18 (!) now it is needle # 12-14, and higher for quilting, I have never changed needles for quilting, neither have the members in my club that I asked. Any suggestions, ot experience with this is greatly appreciated. Thank you