Heinz,

In reply to: "...would a non-snuffer design be to hard to handle alone?"

I have an 18 foot cat and I single hand with an non-snuffer spinnaker. It can be done with the proper setup, but I would not recommend it for racing or for anything beyond a light breeze. It does require more then 2 hands, and would not be good to do if other boats are near by. There is to large a risk that something would get tangled leaving you out of control heading toward other boats. A snuffer would be the way to go.