Well, I was talking about bouncing on the fender, and you'll see the bias ply sidewall does not flex verses the cushioning/flexing occurs with a radial. But the best thing is that we got a few cool pictures from this debate.
I've run my bias plies for a few months in the summer, and they're real teeth rattlers compared to the radials. As for ruts in the road, I've had the wheel yanked out of my hand a couple times when I've hit uneven pavement. Those spots in the road always seem to occur within the shadows of trees, you know?