So I had a new main made from Bainbridge cloth (Diax 2) cross-cut for my mystere 6.0 but it’s really flat and simply doesn’t feel as powerful as my old main from North. My battens are the old Sailbones which are solid fiberglass. I can tighten the hell out of the battens and leach line which helps and of course playing with different downhaul settings, but it’s still not very shapely (i.e. very little draft about 50% of chord).

I run my mast fairly 90 degrees perpendicular to the deck, mast pre-bend is 1 ½” from the spreaders and tight diamond wires. I don’t have any means to truly measure wire tension at the moment.

Sail flatness is relatively consistent through the entire sail.

Question: Is it worth trying to file down the battens with a belt sander to achieve better shape, or should I just return to manufacturer for a re-cut? Has anyone else done this with success?

Any help is hugely appreciated.