Don't know if this will help but this is my experience. I have a couple of spools that are too large to use in the cartridge. The hole in the bottom of the spool was large-it is the type with the piece in the top of the spool to hold the thread when not in use. The spool wabbled and did not feed well so I took the little holder off the top and put it into the bottom of the spool thus holding it more evenly and it works for me. I do find you have to get the thread feeding just right or it gets wound in the wrong place.
If this is any help, I'm glad.

Sally