>>>I only know of two single handed boats that started out as spinnaker boats, the NACRA I-17R and the Hobie FX-one.
Actually the I-17 was in the beginning a spi-less sloop rig design from Australia so even the I-17 didn't start out as a spi boat. later it was converted to the I-17R which lead to the nacra F17 etc. It has taken to it very well, that is true.
But agree with your other comments.
Wouter