We have found it is a very serious condition that leads to FUN, FUN, FUN. Wouldn't take anything for my 301. I prefer it to the FW as it is not as picky. It is durable and loves to go to sit and sews all over. It will take any thread also and not complain. It came from EBAY, cheap, because it looked like the paint was bad. Only dirty. Sparkles now. Enjoy.