Dick:
I have a Hobie 18 Magnum that I solo all the time. I set the jib according to the wind conditions, but I leave the jibsheet near the shroud in case I want to play with it in lighter winds. In heavier winds I never touch it unless I'm starting the tacking sequence (see Rick White's tacking video). I always keep my Mainsheet and tiller in hand, and I like to play with the traveler.
When the winds get over 18, I furl it so I can control the boat easier. Do you have a furler on your rig?
Wyatt