I just upgraded to better servos (Savox 1267/1268), the difference was huge to say the least, also got a better transmitter (m11x). I thought my driving needed alot if work, now it's a pleasure to drive. The best part about digital servos is the control you have, so easy to fine tune to your driving. I really struggled when my rear broke out, use to always over correct, now recovery is quick and easy. Very happy I up graded.