J/30 Class Association Forums J/30 Forum Racing Tools and Techniques J/30 rig tuning for short PHRF beer can also LONG distance

There is no easy answer. The base settings also depend on the cut of the sail. Typically you want to shorten the headstay and tighten the shrouds for heavy weather tune. Additionally you want to put on backstay. This tends to flatten the main and dumps air off the top.

You should take the time to measure the headstay and make sure it isn't too long. Use a Loos gauge and tighten per the tuning guide. What brand sails do you use? The sailmaker should be able to help tune for their sails.

Was this your parent's boat? I remember the Scudder family sailing it.