Ker is dominating IRC (in its class) with his One design 40 and not only, just remember that a Sydney 43 also designed by him won the next Sydney Hobart, but one thing is a design for crew racing other a design for solo racing and I am very curious to see how the new solo boat will perform.
Just to see the differences in design, besides beam, have a look at how the design of the transom is different, not in what regards beam being brought back but on the way the boat sits on the water and allows heeling.
The IRC racer:
and the 40 class solo racer:
The boat first race will be the Transat Jaques Fabre that will start soon.
By the way, ker is the one that has been working on the keels and rudders of Salonas with obvious results in speed and victories. The first Salona completely designed by Ker will be the 60 and I cannot wait to see the smaller Salonas completely designed by him.