I am wondering about the pros and cons of using an asymmetrical spinnaker rather than a twin foresail for the pacific puddle jump.
PowellR
A second had asymmetrical isn't expensive, why not take both? Ours is in a snuffer and flakes down into a reasonably small space under the forepeak berths so out of the way until we need it.
That's a big ocean, carrying extra sails so you don't trash the Genoa along the way would be worth considering.