I just picked up a couple fields for hay down the road, so normally I don't go anywhere on the highway other from one drive to the other, so this was my first time out at full speed pulling my mower and tedder. What I am concerned with is that I had to constantly steer left to fight the crown, what I mean is I have turned the steering wheel 2 full revolutions left to keep it straight. Is this normal for the L4060-HSTC?