I seem to having a heck of a time getting good focus on moving subjects. I am using a G3 and 45-200mm lens. Some sample images are below. I have tried shooting in both aperture and shutter priority, AFS, AFC and still having mixed results. Stationary subjects come out fine. The shutter speeds for the moving subjects are 1/500 and 1/respectively. Since they are simply going at a normal walking pace this should have been a fast enough shutter. I have the latest firmware on both the body and the lens. When I use my 14-45mm lens the images are much sharper. Should I be looking at a different lens such as the 14-140? Any and all suggestions are welcome.