Hi,
In case any Bernina owners are having trouble getting a perfect 1/4" seam with either or both of these presser feet (#37 and/or #57), I just came across a short tutorial telling and showing exactly where we need to be lining up our fabric to achieve the best results possible.
http://weallsew.com/2008/05/28/perfe...tchwork-seams/
Hope someone finds this helpful. :D