I don't have any rudd-ail mixing at all yet, I need to fly it a few more times to decide what it needs. It was very straight in knife-edge, didn't need much in the way of aileron correction, maybe 5-7% "top aileron" (aileron in the same direction as rudder). It really doesn't "NEED" any mixing to fly right so don't worry too much about that for the first few flights.

The elevator correction in knife-edge flight is more dependent upon CG location (usually).

For expos, I went with ~30 - 35% on the low rates, and 45% on the high rates. I will tune to fit my fingers, and will probably lower the expo on the low aileron and elevator settings.