I have a 2000 Outback LS, and sometimes the steering wheel is hard to turn. When the boat is still or going slowly, it's always easy to steer. When I'm pulling someone or especially turning around to pick someone up, it is sometimes hard to steer. It's never stuck, and it's not like it takes Superman to turn it, but it's quite a bit harder to steer than normal. The resistance comes turning both ways. The weird thing is that it's not hard to steer all the time, even when going approximately the same speed as a time when it was hard to steer.

Anyone else had this issue? Any suggestions?

Thanks in advance!