I used my prototype spacers this morning, and added much more tension to the lower three battens. Result: the lower vertical creases came out and the sail ins much deeper for the same amount of downhaul! I'm going to make a more sturday version of these prototype spacers for long term use and the 3rd batten from the top still needs some tensioning (different sized allen key so couldn't fix it today) to remove some sleight vertical creases.
The luff sleeve is also more tight now, so I'm happy with the results so far. Thanks again for your advice.
JP Super-X 106l, North F8 Ram: 5.8m,