RE: ccpm end point adjustment?
EPA adjusts the servo travel at the endpoints.
Subtrim adjusts the center of servo travel.
Swashplate CCPM rates adjust the total travel of each CCPM function (pitch, elev, aileron)
Center servos mechanically.
Fine adjust center with subtrims. All EPA at 100% or more.
Adjust total travel with swash CCPM rate for pitch/elev/ail.
Adjust individual top and bottom (max and min pitch) servo travel with EPA. (all servos are a bit different so you need to finetune top and bottom endpoints).
Rudder channel EPA adjusts rotation speed only.
Fritz