I am at the later stages of purchasing a 2003 Hunter 356. With a Yanmar 27HP motor and a MAX prop. I find at higher rpms (2500+) the boat wants to veer to the port when motoring only. Is this normal in a H356 and if not, then any idea as to what might cause this? I realize I can cheat by using the auto pilot or the wheel brake but that seems inefficient. Thoughts?