Not all vikings have a drop down foot. The only Bernina that I have that has one is the 590. I agree with the recommendation to get the Viking one. I really haven't ever been satisfied with the generic feet and attachments I have purchased. The walking foot is in my opinion an essential add on to get and it has enough uses that you are most likely to use it often. My Viking Walking feet have also been able to be used on other Vikings. I have owned 5 Vikings in the past 40 years, each of which I bought new and used until I outgrew it.