I got my echo pb 403h today. I had the dealer get it ready and when I got there it was the one with the hip mounted throttle. Using the one on the blower tube with a lawn service I got used to that. But it works good. I also asked to guy helping me test it out about the redmax shock problem. He said it's because they have a button you press on the throttle and it's connected to metal and when the switch gets bad you get one heck of a shock. The echo is connected to plastic. No shocking.