As I have a ton of 75/11 Schmetz from years ago I use those mostly for piecing. I also use them for embroidery as that's what I bought them for back then. So far I haven't have any trouble with them on my Viking Epic......except for 1 which kept falling out due to the neck of the needle was somehow smaller than normal. I guess it was a flaw out of a 100 needles I bought.