Thanks fritzthecat. But when I adjust epa for swashplate (pitch/elev/ail), do I need to move the stick to maximum while adjust these servo travel?

"Rudder channel EPA adjusts rotation speed only. " I'm not sure I get this. Do you mean it is for how fast I want to wag the heli tail? But if you keep the rudder stick on one side a bit long, the rudder servo will push further than machanic allows, or it's ok. I know I can't keep the rudder stick on one side long anyway.

THanks again.