I don't know anything about your machine but I do know that my sewing machine does NOT like poly thread AT ALL!! If I put poly on and thread it up and start sewing, the thread will break, bunch up,you name it and it does it. So now the only thread I can use in my machine is the thread from Connecting Threads. Seems like sewing machines sometimes have a mind of their own. lol
Good Luck
Bev