During our 60 nm run yesterday, 2/7, I was at the wheel and I felt an occasional "shudder" in the steering. I wasn't turning the wheel, but holding it firmly. I'm wondering if it could have come from the prop wash as it flowed over the surface of the rudder. Possible fouled rudder surface, I did brush some whiskers off of the rudder but not all because I couldn't reach with the short-handled brush we had. I haven't found the quadrant for the steering, thought it may be the culprit. Don't give up on me, I'm hoping to learn from all of you who have the miles under your belt. Thanks