I bought this gear shift aluminum template off ebay and hot glued it into my dx6i radio. I think it's a must for this radio because it keeps the servo in a particular gear without you having to worry that the stick will move slightly into the center and switch gears on you in the middle of driving. On the dx6i, the left stick wants to move into the left and right center, but not up and down. With this template the stick has to stay in place without you having to hold it.