I'm not so sure about this. I heard or read about three efforts to build single handed F16 that would look more like a A cat. I don't know the exact build status of any of those, but compared to current F16 the idea seems to be to move the front beam and daggerboard way back, allowing an higher aspect main. This would also move the center of gravity toward the back, allowing for a smaller bow.

This would probably make the end result look like a widened Bimare X16 with a shorter mast and more sail area (the Bimare uses a beefed up A Class mast).

I'm curious to see the results of those efforts.