Poll: How many Gen 3 II Having Steering Issues

I'm curious how many Gen 3 Prius II owners are having the same steering issue that I've been having. It's an occasional bumping/clunking or loose feeling when steering hard at low speeds. I've had the dealer look at it twice without their claiming to reproduce it. Part of the problem is finding the right words to describe it. It's more of a feeling in the steering wheel than a sound. Sometimes I feel it when turning into/out of a parking lot from/to the street. I'm not sure if it is just a normal characteristic of the electric power steering, or a defect in the power steering motor, coupling, or rack and pinion.

This poll is primarily for Gen 3 Prius II (2010+). I've read that the higher model numbers have an improved steering column which may be more immune to this problem. I would prefer if model III or higher respond to the thread, not the poll, if you've had similar problems.