For practicing I use profile 5, I think. The one with reverse but still programmable. That way I can still back away from the pipes if I cut the corners too tight.
For racing I use profile 1 with the drag brake off and the initial braking turned down low, and then the initial acceleration turned up for 13.5 For mod motors I turn the initial acceleration way back down.
It's very easy to change the profiles. The manual explains it in their terms so reading through and understanding it before making changes would be good to do. After that just have fun and play around during practicing.