I'm flabbergasted!! You don't like your needle threaders on your machines? I love mine! I have a cheap Janome and my needle threader is fabulous! On the old machines I use the cheap little wire threaders, also. I'm sure you've all gone over your manuals to see why the needle threaders don't work, right? I,too, have bifocals and getting my head cocked just right to see that dang little hole if a real pain in the neck, so my needle threader is a God send!! I've never seen the independent threaders. With so many different machines I'd wonder how it could ever work, but since I've not seen one, I won't judge it. Good luck!