RE: CMP EP Katana SR
On both high and low rates I use 50% expo ( less sensitive around stick center ).
For high rates I have all the travel I can get out of the surfaces without bind, and my radio set to 150% travel in each direction.
In the D/R settings for high rates I have 100% for high and 50% for low in all but the rudder where I have 110% and 70% respectively.
This is about what I have my Funtana set to as well.