When I took a FMQ class, AnnieRose sewed perfectly, but I pulled the fabric too hard and clipped the needle plate so I changed the needle. She started breaking threads. The instructor said to try another needle. Annie was perfect again. The first and third needles were Singers, the middle one a Schmetz. I duplicated the results at home the next day because personally, I prefer the Schmetz and didn't really want to have to bother with two brands. AnnieRose hasn't been fussy about bobbins until this week. When a reproduction bobbin is in the tension will go screwy periodically. With my lone original bobbin, never. FMQ with one bobbin isn't any harder than with multiple bobbins unless you are changing colors. Somehow I don't think i willbe able to find any more original bobbins. I will look for a different repro. April1930s' are tiny bit thicker than the original.