J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Rig Tune

Jason - the main with the rig properly tuned works well with the 163 by design and isn't back winded. I had the "speed bubble" issue with my 2007 North main because it took me a while to figure out what the correct tune was for that sail. The 2008 Main I had no problem tuning for at all. Not all sails are cut the same shape even if they have the same sail area, thus the tuning difference.

If you go with a 155, you should find that you sacrifice some light air performance, an area where the J/30 needs all the sail area it can get. For PHRF only racing, the 155 is probably the best compromise if you take the penalty with headsail area from 155 base to 163.

Keep the 163 "bagged sail" as it will help you in real light air. How about you race OD at the NAs in 2009? We had one Canadian boat this year and could use another.