If this gets less noticeable at high speed, then sounds OK. My streering has caused some probs - it was a leak, and the faster I went, the more noticeable it was (heavy one way, light the other). Leaks are fairly easy to find. Run your hand under the steering ram and it shouldn't feel oily at all. Also, look for an oily "rainbow" effect in the well (if there's one in front of the transom). Check the reservoir at the helm - should be near enough to the top. Finally, turn steering to full lock and then apply all your weigh to the steering wheel. This will show up a leak, as the helm pump will apply up to 1000 psi to the system. Repeat on the opposite lock.