This happened to me on Hull #11 and is/was a common occurrence for Olson 25’s. Fortunately, I pulled my plates to check them when I brought the boat to the SF bay. I would recommend that all 29’s and 25’s check them if they still have the aluminum plates. On the recommendation of Scott Easom, I have also moved the mast base about 2 inches forward giving the rig a bit more rake, seems to have helped a bit with pointing ability. I too would be interested in the rig tensions that other folks are using. Right now my rig is tuned for all around use and is tight and but has small amounts of slack to the leeward in 15 knots, I go by feel but I should get a gage. I could see changing the tune for summer vs winter sailing, but not being a big racer, tuning before every sail is unlikely.