If you look at that bullhorn position you'll notice a little curve going upwards from the flat spot. You could move the stem up and lengthen it and the curve of the drop could theoretically be the same spot. Plus you would have a "laid back" top position too.

Nitto makes some crazy wide 48cm "noodle bars" too if you wanted extra wideness with your drop bars (Rivindell site has these)

I know a lot of people hate ergo drops here, but there are some that have a little "unobtrusive Flat spot" to grob that doesn't look so heinous as the ones with the "palm swell". I'm speaking strictly function here and It may clash with the "style" but that's what's on the table for ergonomics.

I think drop bars are the most elegant handlebar ever made in form and function so I'm biased.