Coming from the Canon XH-A1 and the Panny HMC40, I have found the zoom on the 160 to be almost unusable while filming. I am using a varizoom controller and find that even at the slowest setting, the zoom is still too fast and the start and stop are very abrupt. Am I doing something wrong? Is there another controller that can control the camera better? Is this just something I have to learn to deal with? Any suggestions or help would be greatly appreciated.