I single handed mine alot and the bottom line is that I ran across this little Catalina with everything set up to single hand (lines all ran aft). And had to jump on it.
Just curious why you felt the Spirit was not good for single hand? I mostly single hand mine, though my cousin comes whenever she can. Although I would like a furler to make it a bit easier I have not had any issues with my boat single handing and this is my first boat. In fact I figured out how to sail by trial and error on her.
I have been on other boats that were "set up" for single handing and still have really liked the Spirit better