I guess I'm still not clear, can I lock tight metal to plastic? As well, should I be looking for a specific kind of servo when I'm ready. It should be digital right? I have a 3PM Spectrum Transmitter and Receiver with built in Failsafe. I want something strong enough for steering but yet somewhat affordable. Whats your favorite combination, throttle/steering servos? I'm not going to get into what engine to get because that will be an endless arguement. Thanks. Ken (Any suggestions for servos is more than what I know now)