I just bought a new Ofna Hyper 7 PBS and I am not sure to what servo I should use for the steering. I have seen people say at least 100. oz. But what I want to know is, would it be better to run a high torque or high speed servo? Do you recommend using digital over analog? And what do you run in your cars and what are your recommendations? I am looking to spend under a $100 U.S, but if I need to go higher I will.