Asymmetric Spinnakers

I’m the owner of Zuline, an Itchen Ferry. We’re wondering about downwind sails. I notice a picture of Surprise, in the gallery, flying what appears to be an asymmetric. This is what our sail maker has recommended.

I’d be very interested in members’ experience with various downwind canvas.

We are trying to achieve 3 things:

  1. better light wind performance, particularly at AWA of 50 degrees +

  2. the ability to sail deeper than our current 130 degrees AWA without a pole

  3. achieving the above without a pole.

thoughts gratefully received.