Actually, for two-joystick control, LimitMix isn't appropriate either. Its only purpose is to
mix the x and y axes of a joystick for single-joystick control. It subtracts 2000 from its input as part of doing its job.
Abwehr is right -- just copy the joystick values to the pwms.
Code:
pwm03 = p1_y;
pwm04 = p2_y;
It's that simple.