Candace, look what we have all learned due to your enabling! If it weren't for you sending me the ad, I wouldn't have picked up this machine and none of us would know how important that little letter is to the model number! I still think Singer was on drugs or something when they made these machines different! I wonder how many other models made in different factories were made different or is the 306 series an anomaly? What about the 206 and 319's?
Monica, where have you been? You like to do research!
Nancy