New sail plan?

I don't often use other people's photos on the blog, so thanks to whoever posted this on the internet and if I'm contravening any convention or rights I will take it down immediately. 

 The reason to put it up is that it's such an attractive sail plan. I've been doodling around ideas to put a larger sail plan on Tosh our Cornish Cormorant, years ago I had a conversation with Roger Dongray who designed the original Cornish Crabber, the Cormorant and the Cornish Yawl of which No 1 Greta we owned a few years ago, was Roger's own boat.

Roger's advice on the Cormorant is that it could easily manage a 10% increase in sail area and probably 15%, the challenge for any redesign is to to lose the easy handling of the current rig and make it attractive - the West Mersea boat above certainly achieves the latter.