I have found that I have little weather helm as long as the genoa is trimmed in hard. In heavier air I can tell when my crew is tired and leaves it out too much by the amount of helm. I have a lot of rake and prebend in my mast to induce as much helm as possible. In fact I'm almost sure my headstay is set too long (2" - 3") for class, but I race PHRF exclusively. I have my uppers and lowers at 43-44 on the guage.