For me it is so simple ... SX112 for the throttle/brake and 9402 for the steering. I run one way, there is no issue of braking hard and burning my servo out! Hahaha ... but seriuosly, I need to get rid of the SX112 ... want to use rubber band for fail safe and the SX112 is not a happy bunny with the extra strain. Probably use my 9402 for throttle and then get a new servo for my steering. No matter what I still love my MX3, despite the menu always going nuts when you are on NICADS.