Just a short post to reflect my playing around with the A rig and thoughts on setups for different wind and chop conditions. See the photos below. Of course in a breeze the look of the sail will be slightly different.
A rig set up with 15mm foot depth and straight mast. Setup for choppy water. There will be lost of twist in a light breeze for acceleration over the waves
5mm tension added to backstay. Good setup for puffy weather and flat water
10mm tension added to backstay. Good setup for upper end of a rig and flat water. Eased the mast ram slightly to achieve a fair curve in the mast.
Main breaks down at 15mm
In case you were wondering what the jib slot looks like, here it is from behind. Nice and parallel