I recently picked one of these up and it works well, I just have one problem with it. When I have it in the off position, the throttle is not sensitive at all...it will go from 0 to 25% throttle it seems like. If I turn the knob on, but leave it all the way down, it drives perfectly. The problem with leaving it on like that is if you start the truck up with it turned on, the throttle does not do anything at all, so I have to turn it off and back on every time I drive it. It's kind of irritating, just wondering if anyone has had any similar problems?