I have a BabyLock Surger and it did come with a warning to never tread with the pressure foot down. I have been looking at buying a Bernina 830 I have an Artista 200 and a 1080s right now. They also warned me about the pressure foot when I demoed the machine and also that you can never pull the thread out backward it will break the sensor. You have to cut it at the thread and pull it through with the pressure foot up. I have realized that these new machines do so much more but they have a lot more to go wrong with them. I still am planning to purchase a 830 in the next six months I have been saving all my pennies.