I used a Bernina with my Grace frame when I first got it. I just did meandering so the length didn't matter. What bothered me was that the machine would get hot from running fast for the extended time. I would have to just to a little and then let the machine rest. (It is an older Bernina that was my MILs) Now I have a Juki TL-97Q that will happily stitch fast, fast, fast and is happy to run for a long time without smelling hot. It has a little longer throat too.