I've picked a profile for this edge based on some sheraton furniture I've seen in a book. It doesn't match any standard router bit, and I can't figure out how to route it short of buying a custom profile. I am sure it can be done with standard bits, but I'm not sure how. the profile kind of looks like two bullnoses on top of each other, but offset so that the lower one is wider or further out.
A drawing of the profile I'm looking for can be found in this article on my blog:
The closest thing I can guess is to use a router table, make one pass with the fence right over the bit to do the bottom part, and then lower the bit height and move the fence out a little to do the top part.
If any of you have ideas, a reply to this post or a comment on the blog article would be greatly appreciated.