Miriam, my issue with the serger needles was that they were round and wouldn't stay seated in the proper direction. I had just taken that machine apart and put the needle clamp back on (with that weird little jig inside), and had a horrible time anyway even finding my way up through the clamp. (I wound up using a mirror and a flashlight with the machine tilted back so I could finally SEE). So getting that round needle organized just didn't work. I was just a *little* annoyed with the local sewing machine store... I had asked for the "DX-something F" needles, and they gave me the package without the "F", which I now guess means "flat" sided. But it's a family business, they'd just lost a daughter-in-law to cancer, and getting the wrong package just didn't seem worth complaining about right then. I still need to order the proper needles so we can do special stitches though!