I posted questions on this subject a year ago and got remarkably little
response. In the end I went to Deme Voiles and asked them to make me
sails exactly like they are now putting on the 54. All singing all
dancing radial cut small vertical battens etc.. I have now done 6
months with these new sails and put simply thay have transformed the
boats performance allowing us to sail in much lighter airs than before.
Can't recommend them strongly enough!