Got the new Irwin mainsail and foam sandwich battens on Friday and used it in 1st race Saturday afternoon 25/02; 0 to 8 knots. Upwind I seemed to be slower against my usual benchmark Mozzies but the downwind speed was incredibly greater. I used to get passed by the Hobie 16s on the reaches but now I'm equal or faster.
I need to work on my upwind settings

. Used full downhaul and played with mainsheet tension from fully in to slighyly released. Does anyone have useful comments ?