Having never used a spinnaker before, I went to a (free) workshop where instructors were outlining the basics of setting, tuning, trimming, jibing, and taking down the spinnaker. Everything was taught on a Thistle, which we later went and sailed and actually flew the spin. One of the crucial points when raising the spin (on a Thistle) was to lower the jib. You mentioned earlier that the jib on a 470 stays up all the time -- so do you sail the jib under the spin the same way as you would without the spin?