Latest crossing seems to have been on an Inter 20, by Katie Pettibone & skipper who`se name I can`t remember - A small write-up was in Sailing World mag, November 2003 issue. Apparently they experienced conditions which Rick describes, no wind in the Stream, then short steep waves & strong winds. In spite of this they crossed in 3 hours, the return trip took much longer, total trip time was 15 hours, not too sure if they did it all in one go or on separate days. Katie Pettibone wrote the article, and recommends waiting for a Southerly wind I think, also says it`s within reach of a lot of cat sailors in the area. Maybe she has no idea of some of the dangers which Rick mentions !
That`s all I remember, perhaps if you can find that issue it might help, although it was a short write-up.

Cheers
Steve