How timely, as I have to put a velvet border on a crazy quilt, and have been avoiding it exactly because I was worried about the nap.
That said, I think you would still need an adapter before using a generic low-shank foot on a Bernina. Because, you know, it's a Bernina. :roll:
However, this made me go look.
http://www.berninausa.com/product_de...-i150-sUS.html