What bdavison is referring to is set-up in normal mode (top left switch will be toward the back). In normal mode, with the trim all the way down and the throttle off, your blades should be at or close to zero pitch. In idle-up mode (top left switch toward the front) the throttle stick will be centered. Raising the throttle from this point applies positive pitch. Lowering throttle past center will apply negative pitch (what you use for inverted flight). It is best to set up the pitch in idle up if you plan to go inverted. When learning to hover you can set up from normal mode and later check it from idle-up when you're ready. Make sure you unplug the motors before doing any adjustments. Initiate the 4-in-1 to center the servos and then unplug the power. Make adjustments, reinitiate the servos and check again. It's very easy to move the servos off center. You can do the set-up with the power on but you have to be very careful not to short something out. I personally don't take that chance. Once everything is set where you think you want it. Plug in the motor and set your tracking according to bdavison's instuctions. Believe it or not, pitch means nothing if the rotors aren't tracking properly.