Giddy,

When I fly, Ihave all four toggles to the rear. That puts the trainer off (back left side switch), idle up mode (not stunt mode left front switch), throttle hold off (right rear switch) and high control surface rates (right front switch).

The knob on the left side is only used if you bump up to stunt mode, it adjusts the throttle curve. The dial on the right is only used if you need to control an additional channel channel 5.

From what Iunderstand, there are two flight modes: Idle up and Stunt mode.

The idle up mode basically adds throttle to the blades while increasing the pitch of the blades at the same time to provide lift. When you reduce throttle , it also reduces blade pitch and lowers the bird.

The stunt mode is similar except that it provides for a faster and more constant head speed. The throttle stick then provides for positive pitch for lift and negative pitch for inverted flight. You can fly normally in the stunt mode, you just get a much quicker response going up and down.

Now, to bring the two together, if you tried to start your heli in Stunt mode, the throttle stick would be all the way down, and the head speed would be high. The heli would be squatting on the ground and going fast. So, you use the first throttle mode (idle up, hence the name) to idle up to the throttle midpoint so you can then go into stunt mode and be in an neutral position on the throttle stick.

With a digital radio, you can set that throttle "curve" up any way you like it. With the SRstock radio, you can only adjust the mid point using the left dial.

Hope all this makes sense, it took me a while to understand all this in the real world and to conceptualize it.

c