I'm not sure you're correct about that. If it has the IDT, I think it's considered, "first string". Maybe someone who really knows will chime in here. Or you could join the Pfaff Yahoo group and ask there.
Originally Posted by
PatriciaPf
Among the Pfaffs, Hobbymatics are considered a secondary line, and they don't hold up as well as the first string Pfaffs, though others might disagree. I have a Pfaff Creative and an old Pfaff 360 that I love, but I wouldn't buy a Hobby.