Each time we test a Johnny Campbell replica race bike, every test rider raves how perfect the riding position and control setup are. It helps that JC starts with a Honda, and the company takes extreme pride in its human engineering. But any one of Campbell's bikes rises above the Honda family genes. At least half of the reason is that JC is a good test rider, with a clean and correct riding style. He's just on the tall side of average and sets up his bikes with an eye toward the long run. The other part of the control setup is Precision Concepts technician Eric Siraton and his attention to detail. Ever since Siraton and PC owner Bob Bell started working with Campbell, his bikes have had zero mechanical failures. When we contemplated a story on control efforts, we knew exactly who to call. We borrowed a clean-looking, apparently wellmaintained 2006 Honda CRF450R as a guinea pig. Despite appearing clean and nice, the control efforts were hard and the throttle didn't return cleanly. It just looked like it had been washed thoroughly and a little too often.