I find that my Baby Lock Ellisimo, doesn't like for the Floriaini, and I love that thread, the colors are great. I use a lot of the Sulky, that I try to get on sale at Joanne's when they have the 50% off. I also use Isacord, that seems to work very well, have used other also, but the only one that gives me problems is Floriaini, it frays and hangs up in my machine, it is a big pain, messes up the sensor. Different machines like different threads, I have lots of thread, but buy the colors I like, if it is something I use a lot of I will buy more than one. For me, I would just a soon buy the ones I like, for buying the big packages of thread, some of which you might never use. I also don't like the little spools, for they are to small unless you are doing something very little. I get the spools with 1100 yards on the most of the time.