I know not of one designer that did a succesful A-cat AND a succes spinnaker boat. And yes that includes Marstrom as the Tornado is a Rodney Marsh design and the M18 and M20 are surprisingly unsuccesful.
Wouter
AHPC,
Quiet a few successfull A Class designs.
Taipan 5.7. Was originaly designed for a spinnaker and later adopted in it's class rule. Very good design and pretty quick. Was not quiet as succesfull sales wise due to the high price tag and only marketed in AUS which is a very small market.
