Hi Steve,
As any sailor knows, there is "no way" to sail the boat to it's potential...solo. Just too many things going on. The reason I put it together was to play with my friends who mostly sail solo with spinnakers. These solo spinnaker sailors have I20, Mystere 6.0, Hobie 20, Mystere 5.0, Hobie 18 to name a few. We get together on the weekends and "drag race" and hot dog in the Gulf. We are on equal terms, since we all single-hand.
How?? I weigh about 200 pounds and am 6'2", which helps. I sailed my P19 MX package mostly solo for three years. It did have some power. The self-tacking jib is a plus. I trap near the rear beam where I have immediate access to most of the "strings".
Of course, when the wind builds, the spinnaker can't be sailed to it's potential because of lack of crew. Most of us just like to beef up the boats and have a good time.
Hope that answers your question. Oh, by the way...we have reasonable light winds here in Florida during the summer. Except when the thunder storms make themselves known.
Dave