Hi, I can't answer your jib question since I haven't upgraded from the old rig (yet), but I have single handed quite a bit and it's amazing how little wind it takes to overpower me (165 lbs). This, of course, is what makes it fun. If you're going to fly the spinnaker, I would think that it will only be in very light air. One of the reasons I haven't bothered updating the rig is that I really haven't felt the need to given the amount of solo sailing I do. Oh, and I can't right the boat solo so I pre-arrange rescue prior to going out. Please post your results when you attempt solo righting; if it works, it would be worth looking into. Good luck and good wind.
Al