Neat history. You might like to have the boat weighed. We found that at leaso one of the other Heritage One-Tons on Lake Erie floated suspiciously 4 inches higher out of the water than we did. Their crew quickly moved the boat when they noticed us checking it out. They also had the boom 18 inches lower (more area). We always had trouble head-to head with them. We suspect that the 7500# keel had been cored. Perhaps you should have pressed thast protest.
If you ever replace the rudder you might consider moving the center of effort slightly forward from factory in order to reduce the heavy helm you get when the boat is powered way up. We used a tiller for many years and positioned crew to assist the skipper by foot power to ease some of the helm force. With a wheel, you can't snap the rudder fast enough to brute-force the thing the way you need to as the flow begins to sepearate and stall. The tiller lets you recover and still live with too much sail for the puffs.