Whoa!! I just checked the tables again and didn't realize it was 18SX with spi
My statment was predicated on there is no difference in the boats when "spi-less", other than the standing rigging/sail plan, hulls and frame are identical.
We've kept pace with (and passed) H20's upwind (combined start)...at the weather mark they left us like beached whales. <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" />