I envy you if you sail somewhere where winds do that and conditions are still ok for going out.
To me, the zipper sail or some reefing setup has always looked like a practical answer to overly windy conditions. But I haven't seen the need to invest. Curious of what results you get.
However, got two extra battens to add for windy conditions. Putting two battens in the lower pockets is supposed create something like a boom and flatten the sail out. The draft or pocket of the sail is less, cuts the power. Not used them yet, though, only because opportunity hasn't come up.
Last season, did have one batten "relax" and had to replace it. Kept noticing pocket growing and new batten fixed it.
Do you want me to tell you for the 1,000,001 time! The Wave...