Summer 2008 I bought a Nicholson 43. I was told it was designed by Peter Nicholson.
After I bought it I heard and found several names for the designers. S&S, Peter Nicholson and David May.
On the drawings of the sail plan that were still with the ship I only found the name of the yard.
I have posted a question about this at the S&S site and got the following reply from them:
Dear Mr. Jonker,
Thank you for your inquiry and sorry for the delay in our response.
We believe this Camper & Nicholson 43 is not S&S design and we have no knowledge who the designer was.
Design Department Administrative Assistant
Sparkman & Stephens
529 Fifth Avenue
New York, NY 10017
I think it is save to say that it was not S&S.
I'll keep you posted if I find more.