I have a 1975 Hobie 14 with what appears to be newer rudder casings on it. But when sailing in winds above 10-15 knots I get alot of weather helm while on one tack. This happens at all points of sail. What is the best way to correct this problem? I have looked at new rudder casings but the cost is to high for the amount of times a year I get to race a Hobie 14. <br><br>