I've done FMQ on my 201 in the past, and it was decent. However, I've recently done some on my 15-91, and I was amazed at how nice it was! I had extremely few problems with tension like I've had on other machines (new and old). I'm not great at FMQ, but it was much easier for me on the 15-91. I've seen people say it's because of the bobbin orientation being vertical rather than horizontal. Being in a cabinet helps too. I've used my mother's modern Huskvarna-Viking before, and it scooted all over the place.