I love these needles. I have less problems with them because the center of the eye is more curved so the thread doesn't shred on it. I don't understand these machines that don't like certain threads or needles. As much as I paid for my machines it better like whatever I give it. This being said, certain sizes of thread requires certain sizes of needles. Sometimes I may have to play with where I sit my spool of thread but my Vikings/Kenmore/Janomes and Brother takes all that I give them.