Your adjustments are going to vary with your model. All it takes for a change in steering EPA is switching to a longer or shorter servo arm to warrant a change to your settings. Micro servos seem very short lived if you put unnecessary stress on them, too. End point adjustments should always be used!

I have an M8, (for a few more days) that I've had for a long time. The throttle curves in it come in real handy on low traction surfaces to slow your take off.

Biggest help ever was running my GT2 on a super high-bite track, with an engine thats supposed to be for onroad, with a slide carb running on 30%. The throw of the throttle servo had to be slowed down in order for me to get any throttle control and traction at all. Onroad engines seem like they have 2 speeds... idling and wide open. Slowing down the throttle servo gave it more of a linear feel. Throwing in a curve is nice because you don't lose any top end speed, just acceleration.

Do you have a more specific question?