Robert,
IF yours is consistently pulling check both knife edges and you can mix it out with a start around 4% up elevator which will cure one way, then check the other way too..might need down elevator istead so heps to check..this will also help with horizontal flying too, rudder correction will be just heading change and not cause a dip in the flight path with this correction...
How did you end up placing at KCRC contest...Charlie Rock