Portsmouth seems to work about as well in multihulls as PHRF does in monoslugs. As Kaos points out, it ain't perfect. Nothing is. Heck, even OD ain't perfect when the mfrs. keep releasing new models! Nacra has its Infusion. Now Hobie has a "new" Tiger! Of course, the penultimate would be the "one design" class of A-cat!!!!

But when it gets down to bragging rights at the BBQ, there is nothing better. If you want to get serious, go "one design" (whatever that is!). Otherwise, crack a beer, wait for the wind to fill, and go for a ride!