Some conversation over here on tuning: https://www.hobie.com/forums/viewtopic.php?f=15&t=53540
https://www.hobie.com/forums/viewtopic.php?f=15&t=52276

I would probably start with a F16 tuning guide or pinging a former owner. My understanding is they can go down the mine relatively easy (fine bows) and you don't really have an direct competition as there isn't an active class, at least not in the U.S.

Good luck.