I hate to spoil all the fun by being rational, but. . .
According to JW, the F16 Dpn may soon drop because of the boats performance (MATT!!). So, it appears that the F16s and F18s are much, much closer than you might suspect. At least two F18 sailors, who shall remain nameless ( after all I wouldn't Ding and BK to get upset with me)have suggested we should all be sailing even up! If I understand it correctly, this is the trend in Europe. But, you'll have to ask Wouter about that!
The point is designers are doing great work across the board, resulting in a very competitive beach cat community.