hEY,
just checking out the new naish 2009 sails catalog (cos i am a toy shop freak) and i noted that there is a new sail called "old school". Its like a modern version of the old softer wave sails. It rekon that it would be the ultimate light wind or SUP wave sail. I would go the 5.4 but I note some would prefer the 4.8 eg JB. But either way, if this sail can handle a bit of punishment, cos its softer and would generate a heap of smooth light wind power, itwould be the ultimate SUP or light wind sail.
A meribula special......